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Una GPS smart watch – Repairable, USB-C charging, developer-friendly
- SketchySeaBeast 2mo agoI do like the idea of USB-C, the garmin's power plug is nothing but annoying. It's really just a matter of battery life and what sort of software integration it has. Although, it's hard to beat the Garmin ecosystem.
- briffle 2mo agoI think battery life is the most important. My Garmin Instinct 2 goes about 3.5 weeks between charging (the older non-OLED screen). It has solar, so I usually go over a month. But a watch, something people will wear swimming, sweaty, in the rain, etc, is something that should ideally follow the wireless charging standards, and not have a plug taking up space, and being a spot for leaks...
- SketchySeaBeast 2mo agoWireless would be ideal, assuming there's still some way to connect to my PC.
- slibhb 2mo ago> Can I swim with UNA? > UNA is currently a non-submersible device due to its innovative modular design. So, swimming is not something we offer as an activity, nor do we advise it. UNA is IPX5 rated, which means it is splash & showerproof to a high degree.
- pockybum522 2mo agoDamn. But hopefully they improve on that. I would absolutely be considering one if this wasn't the case
- parl_match 2mo agothat's the thing about these "open" devices, there's always one "would absolutely be considering" use case that they never meet. makes it real easy to not buy one ;)
- jhoechtl 2mo agoSo it will never last a lifetime.
- pandemicsyn 2mo ago> "UNA is currently a non-submersible device due to its innovative modular design. So, swimming is not something we offer as an activity, nor do we advise it. UNA is IPX5 rated, which means it is splash & showerproof to a high degree." If I had a dollar for every time some project that was ipx5 rated failed after getting caught in the rain one too many times...I'd have enough to buy another Garmin Fenix.
- PunchyHamster 2mo agoYeah that's a non-starter, I don't ever wanna worry about that in a watch. And putting "designed for lifetime" next to it is just hilarious, where are you gonna trek with no water, from bathroom to kitchen ?
- cromka 2mo agoThose are not exclusive statements — as long as parts are available for a lifetime
- jerlam 2mo agoThere are zero spare parts available on their website. If repairability is one of their selling points, not having spare parts immediately available is a big misstep.
- phoghed 2mo agohttps://unawatch.com/collections/accessories https://unawatch.com/collections/accessories Looks like display and battery are “coming soon”, and those are the only 2 parts they have repair videos for as well.
- frankbreetz 2mo agothe bathroom and kitchen both have faucets! You can potentially trek from the bedroom to the living room
- branon 2mo agoAnd I just bought a Garmin Forerunner 55, too. I'm still within the return period, will have to consider this...
- hxbdbdb 2mo agoUSB-C really does not make sense for such a device. It's significantly too bulky and is hard to get water proof
- SketchySeaBeast 2mo agoIs it hard to get waterpoof, considering that every modern smart phone is both usb-c and waterproof? Important to note that this watch doesn't claim to be waterproof.
- aleph_minus_one 2mo ago> considering that every modern smart phone is both usb-c and waterproof? I doubt that modern smart phones are waterproof. Who would trust use their smartphone while showering or being in a bathtube (including submerging the smartphone a few centimeters into the water)?
- lightedman 2mo agoI dive in the ocean regularly with my Kyocera DuraForce Pro. I take underwater photos and videos with it. It works just fine.
- vel0city 2mo agoTons of people trust having their phones while taking a bath or near a swimming pool. I've sometimes clean my phones off by washing them in the sink when they get exceptionally dirty after the kids have been messing with it. I regularly have mine near the pool, and have taken some work meetings while in the pool before. Why not? The featurelist says its waterproof. I remember when the iPhone 7 had just come out (the first waterproof iPhone), a friend bought one and then went on a cruise. On a shore excursion he was at the docks and saw some cool fish. He dunked his phone in the water to take some cool photos. Everyone looked at him like he was a mad man, dunking his iPhone in the water just to take some pictures.
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- mikestew 2mo agoI really want to like this watch. Price is certainly right, and it does all of the things I'd want out of a Garmin or Apple Watch Ultra. But what problem does this solve for me? In the Apple Watch use case, a replaceable battery would be nice. But in contrast to Garmin, I've never replaced a Garmin because the battery wouldn't hold charge anymore. I've never broken a screen (if one has a habit of that, Garmin and Apple make watches with raised bezels). I just hold on to the Garmin for six or seven years, by which time it's so beat to hell that it's time for a new watch anyway. But I'm wondering if the subtle message isn't aimed at Apple and not Garmin. USB-C charging would be awesome, instead of Garmin's proprietary plug and a cable that's made from spider silk. I'd prefer, though, wireless charging like Apple. Never once have I pulled an Apple Watch off a charger and said, "WTF? Why didn't it charge?" Garmin, OTOH... I'm no triathlete, but the "no swimming" kinda puts a damper on my enthusiasm as well. I wish them well, I love the idea even if I probably won't buy one.
- throwway120385 2mo agoUSB-C would suck. Part of the purpose of that proprietary plug is that it's very water resistant and very durable. Imagine getting mud or coarse sand in your USB plug and not being able to charge anymore.
- weakfish 2mo agoFor me, I want an open API I can pull my data from. Last I checked, you have to be a business to use Garmin's API. Apple certainly doesn't let you. My goal is to have a cron that runs on my homelab that pulls my health data into a DB I own, from various sources, and visualize it in Grafana.
- asats 2mo agoyou can use https://github.com/cyberjunky/python-garminconnect https://github.com/cyberjunky/python-garminconnect to pull your data from garmin, I've been using it daily with no issues
- rich_sasha 2mo agoPolar has an API where you can get more or less anything out. That bit is fine - sadly you can't put things in (like virtual cycling, or any activities not recorded on the Polar).
- cuu508 2mo agoSpecs don't make it clear if it supports BLE sensors (HR strap, power meter,... ).
- jerlam 2mo agoOne of the tiles on the buy page says "HR BAND SUPPORT Connect compatible BLE chest straps". But one single connection type doesn't compare to Garmin's list of supported ANT and BLE accessories.
- TMWNN 2mo agoI have an Amazfit Balance, and previously several Amazfit Bips. I really like being able to use my watch as a BLE heartrate monitor with iSmoothRun on iPhone. I gather that being able to do so is not typical for smartwatches.
- jerlam 2mo agoAny "open ecosystem" product needs to be a competitive product out of the box, otherwise it's just a development toy. Developers aren't going to enhance your product to fill in all the gaps unless there are customers, and preferably paying ones.
- abstract_put 2mo agoAcknowledging I'm in a small niche, programmable high quality GPS watches are kind of not really a thing. As a developer, I find the hardware offering compelling and is something I jumped on. Agreed that it won't reach mass market with that mentality though.
- pimlottc 2mo agoThey hardly even mention the software, but isn't that half the value of Garmin devices?
- belval 2mo agoMore than half imo, my Forerunner 265S is pretty much a full-blown coach that fits on my wrist. It adapts training to my sleep (such a great feature when you've just had a baby) keeps track of load, low aerobic, high aerobic, etc... It's been a fragile piece of hardware, I am on my 3rd one in as many years (always replaced under warranty though), but I still probably wouldn't switch to anything else. When it breaks out of warranty I'll just buy another one.
- iancarroll 2mo agoI've wasted so much money on vendor charging cables in the past 10 years while traveling or moving that I would probably buy this just for the USB-C port, assuming it is actually splash proof. I wonder what HR sensor they use. Samsung apparently has an average error of 7% which is pretty bad, so I wonder if this would be worse. [0] [0] https://www.cnet.com/tech/mobile/i-ran-30-miles-testing-5-smartwatches-to-find-out-which-ones-you-can-actually-trust/ https://www.cnet.com/tech/mobile/i-ran-30-miles-testing-5-sm...
- yread 2mo ago2.5MB RAM, FreeRTOS!
- lrae 2mo agoSome good points were already brought up in the comments (IP5X, USB C charging), but I have the feeling that it's also just not a good fitness tracker/smartwatch. I see a single unboxing of the watch from three weeks ago on Youtube and zero reviews on YT or websites. Just posts based on their PR release that it's available now. (Though some clearly already shipped.) Thus, it's unfortunately very likely that the product is also not good at its main purpose, tracking activities, workouts and health. If it would only even come somewhat close to the performance of all the competitor smartwatches/trackers, they'd be louder about that part.
- LeifCarrotson 2mo agoThere are only about 400 units in existence, and they just started shipping June 30: https://www.kickstarter.com/projects/unawatch/meet-una-the-modular-gps-sports-watch/posts https://www.kickstarter.com/projects/unawatch/meet-una-the-m... so it's been out for less than a month. That's why you've seen zero reviews on websites, it's an indie Kickstarter. They don't have the marketing budget of a big wearables brand. It has a GPS, IMU, and heart rate sensor: That's enough, obviously, to track activities, workouts, and health which their competitors do with the exact same set of sensors. It remains to be seen how accurate those are, or how well the manufacturer and community can develop useful algorithms to turn raw sensor data into activity logs and actionable health insights, but step 1 is to release an MVP to get people wearing the watch and logging data, and step 2 is to use the data to improve the algorithms.
- microtonal 2mo agoIt's not as simple as just dropping a heart rate sensor though. It also took Garmin, Coros, Apple, etc. several generations to make good-enough heart rate sensors and most of them are very proprietary.
- abstract_put 2mo agoNot that it changes any of the rest of your comment, but from their Kickstarter campaign updates it seems like there are at least ~800 watches out there (and the public store just launched).
- exabrial 2mo agoIf it has a flashlight and is beyond waterproof, I would maybe consider it. My Garmin Epix watch is practically bullet proof. I've dove with it in open ocean. I've jet skied with it. I rock climb with it. It's surived 108miles of Unbound (the race) in mud, sun, sweat. I've water rafted with it. I've swam in crappy lakes, streams and jumped off cliffs. Hottubs? also no problem. Zero chance a iWatch would ever survive these conditions. Oh and despite all of this, the screen has not scratched, not even a little. Plus it has 5-10 days of battery life... and did I mention I always have a flashlight on me?
- notesinthefield 2mo ago> the screen has not scratched I believe this the least!
- lrae 2mo agoSame. Both have plenty of scratches here. I also don't see why an Apple Watch wouldn't survive all those mentioned things. Pretty sure I did all those things with an Apple Watch on, except for the specific 108 mile gravel race. But I don't see why it would fail that. And both might absolutely scratch while climbing, and if you're unlucky and hit it in the wrong spot, also crack. That said, if I were an athlete in any of those categories and did it all the time, I'd still absolutely choose a Garmin.
- gwill 2mo agothe sapphire screens are incredibly resilient. mine looks brand new and is several years old. tested against plenty of bouldering
- lrae 2mo agoThey are, they still scratch though (just google e.g. Fenix 7 Sapphire scratches). It's also not on all models. I guess part of it is also just layers on top of it scratching and not the sapphire itself. But, Apple Watch Ultras and also Titanium models since Series 6? ship with Sapphire crystal too.
- gbil 2mo agoThe title is misleading at least, to compete with garmin you need the similar offering, with swimming/waterproofing being the huge outliar here but also the ecosystem and like it or not features like the notifications. Very valiant first effort for sure but after 6 years with a Garmin Fenix still holding 90% of its battery (and being able to replace it), I'm not their potential customer.
- Melatonic 2mo agoI would say the big outlier is the battery life (for Garmin). Theres other options for waterproof stuff and a lot dont need something good enough for swimming. Of course its a huge plus.
- mikae1 2mo agoCan you analyze the data your watch and body generates locally using FOSS without uploading it all to surveillance capitalists? That'd be the true alternative.
- aleph_minus_one 2mo ago> without uploading it all to surveillance capitalists I by now often see the term "surveillance capitalists"/"surveillance capitalism" on HN. While it is a great thing to fight surveillance organizations, don't forget that communist countries had/have (for the latter: People's Republic of China) much worse surveillance in place.
- TMWNN 2mo ago> but after 6 years with a Garmin Fenix still holding 90% of its battery (and being able to replace it), I'm not their potential customer. What kind of battery life did you have when you bought it, and how long is it now? Does Garmin still upgrade the firmware?
- sgarman 2mo agoI have a 7S and it still gets updates regularly.
- arnejenssen 2mo agoFor me the value of Garmin (Forerunner) is their proprietary algorithm for calculating Stress Level from HRV. It is the basis for the Body Battery measure. I find it useful to see how food and activity affects my stress levels. I guess it would be possible to reverse engineer a similar stress level calculation. Perhaps AI-powered?
- TekMol 2mo agoIf the algorithm is proprietary, how do you know it is calculating something meaningful?
- LeifCarrotson 2mo agoIt matches my lived experience. My body battery and stress often starts declining for no apparent reason and then 12-24 hours later I feel the symptoms of an illness. Similarly, when in a tough training block, HRV is a great tool to gauge how hard I ought to be able to go: I've tried to push through and just do a tough workout anyways when it's out of range, but failed to complete the workout in good form, or felt superficially crappy but had good training readiness according to the watch and was able to do better than expected. The same holds true in the other direction, I don't log into Connect or scroll through the multitudinous widgets of data often enough to really keep tabs on this stuff, and when I get sick or feel good or bomb a workout or succeed at a workout when I felt off, the metrics consistently back up the actual results. Personally, I've been thinking about jumping ship to a Coros Apex 4 if my battered Fenix 6 ever gives up the ghost - Garmin's prices are insane these days. At $270, this is cheap enough in comparison to a $1200 Fenix 8 Pro to take the chance. I could buy this and a $480 Apex 4, and then decide I didn't like either of them and go back to a used Forerunner 955, before spending as much as a new top-end Garmin.
- Melatonic 2mo agoPersonally using a 955 I recently (ish) got new direct from Garmin while they were still selling them. Got some major discount through a link I believe was tied to health insurance or something. The newest watches seem insanely priced though and don't seem to add much. But the newest Enduro with decent solar is tempting
- hackingonempty 2mo agoThis is cool because we need more open competition for the app/identity locked ecosystems of sports related electronics like gps watches, bike computers, and action cams. I hate how none of the major brand ones will work without at least signing up for an account and most wont work at all without the manufacturers app.
- abeyer 2mo agoDoesn't this also use its own app and services? The only "open" part of it I saw in the docs was that there's an sdk to write your own app that runs on the watch. Better than nothing, i guess, but not quite what I was hoping for.
- hackingonempty 2mo agoSadly I think you're right.
- Melatonic 2mo agoI like this a lot. USB-C is obviously not ideal for a super durable plug but with the right cap (sounds like they use a rubber insert?) it could be great. Especially since it would allow direct data access. What might be cool for a version 2: 1. Custom hardshell "door" to cover the USB-C port. Something that cannot fall off the watch. The port itself could be well sealed like a phone and then have this additional layer of physical protection. 2. Wireless charging of some type (or even add pogo pin as well). Would be nice to top up charge without having to expose the USB-C and probably increase the plug life. Does this require a glass back? Because obviously that would not be ideal in a watch. 3. Better waterproofing. I dont personally use my Garmin for swimming often but would be nice to not have to worry about it. Anybody know about the battery life in real world use?
- lobster2342 2mo agoI just finished swimming, tracked by a Garmin Forerunner 910x which I bought back in 2015 and I have been constantly using since. Wrist band replaced once each side. Battery lifetime still amazing, even with longer bike rides and GPS. Data can be analyzed locally. Uptime since I bought it: almost 100%. Amazing peace of Hardware. Also their algorithms are cool. If the watch tells me to rest more than 24 hours, I know, I will be tired the next day. The two features that I miss are built in heartrate monitor and temperature sensor. I payed around 500€ back then. Over the years I use this watch, the price became very reasonable.
- the_real_cher 2mo agoi have a fenix solar, i charge it once a month. it has an insane number of features
- microtonal 2mo agoThe price is also insane nowadays though. IMO they are very vulnerable to the likes of Coros, who also have MIP watches that last for weeks, have much faster mapping and are less than half the price.
- the_real_cher 2mo agoI know. I got a health perk at work for the year and used it all on the watch. I don't know if it would have been worth it to me without that. How's the accuracy on the Coros watches?
- microtonal 2mo agoI haven't compared it with a heart rate band yet. GPS accuracy is good since I enabled dual-frequency (MAX), before I had some inaccuracy in (urban) canyons.
- NBJack 2mo agoHonestly, Garmin watches are amazing. Going from a watch I had to charge daily (Samsung Gear line) to one I charge about 3 times a month feels incredibly liberating, particularly for travel. _And_ it feels almost as slim and light as my old Pebble Time Round.
- jhoechtl 2mo agoIs there any good watch outside doing GPS for position and time, minus all the body survzeilance things?
- RedShift1 2mo agoI have an Amazfit Balance 2 and it does GPS just as well as any other smartwatch and you can turn off all the body surveillance.
- Schiendelman 2mo agoApple Watch is great for that, and you can turn off whatever you don't like.
- m463 2mo agoI have garmin as it doesn't require any sort of connection or activation to function out-of-the-box. Just put it on your wrist. You CAN decide to use garmin-connect for apps/updates or pair it with your phone, but I never have and I'm fine. Apple watch and others require activation.
- cyberax 2mo agoWhy is it round?!? WHY? Round watches are bad. A circle is the worst shape for watches. Good watches are not round. Roundness is an anti-feature. Really. Just use a rounded rectangle shape. It will end up _smaller_.
- FpUser 2mo ago>"non-submersible" - this right away excludes it from even considering for my use.
- znpy 2mo agoNice, this might be the right thread to ask a question i have had on my mind for a while: is there a watch that can track some biological metrics (heart rate, steps, sleep data etc) but allowing my to pull data off it without using some proprietary platform? Basically i want to store my data in my own database. Might this be it?
- tmgldn 2mo agoWindows only for dev SDK simulator - not too sure many devs rockin Windows in 2026!
- vel0city 2mo agoQuite a lot of developers use Windows. https://commandlinux.com/statistics/developer-os-preference-stack-overflow-survey/ https://commandlinux.com/statistics/developer-os-preference-...
- abstract_put 2mo agoIt's not Windows only, it runs on Linux just fine (not virtualized). It started Windows-only, but has quickly been patched up to run on Linux.
- vmurthy 2mo agoEUR 240 if someone’s pondering the cost-benefit equation .. https://unawatch.com/products/una-watch https://unawatch.com/products/una-watch
- deivid 2mo agoLove the idea, but I can't handle the big screens on these smart watches. To me it feels like having a fisher price toy on my wrist. Hopefully a more open alternative to Withings will emerge
- handedness 2mo agoAgreed. And beyond the size, MIP > OLED all day long for me. I'm sad to see it falling out of favor on flagship devices.
- m463 2mo agoI thought the same thing. Then gradually got slightly larger watches when I upgraded fenix 6 -> 7 -> 8. (also lcd->lcd->amoled) Now I don't notice.
- LeifCarrotson 2mo agoThis is a comparatively small one: 40.25mm diameter screen, 14.4mm thick, at 50g. My Fenix 6 Pro has a 47mm face, is 14.7mm thick, and weighs 80g (but as a Fenix that's the stainless bezel one, the plastic bezel watches are closer to 50g).
- 1970-01-01 2mo agoHow is USB a feature?? Everything done via USB-C can be and should be entirely wireless for a watch. >Gone are the days of brand specific charging cables. Returned are the days of worn-out, broken ports and searching for another charging cable.
- tomhow 2mo agoCharging? It likely adds a lot of cost and complexity to add mag-charging if you’re not Apple or Samsung. Does Garmin even have it yet? (Edit: only on a small number of models at the premium end of their range.) So it’s an important differentiator from Garmin, which uses a proprietary connector for its charging cable, that is easy to lose/break and expensive to replace (from personal experience with a 2022 Epix).
- 1970-01-01 2mo agoWhen the port pins break and you have no way to recharge it until a new USB port arrives, yes.
- m463 2mo agogarmin cable thing became non-issue as cheap garmin cables came out.
- LeifCarrotson 2mo agoI love the Garmin pogo chargers. I've got a few of their $3 puck cables scattered about my home, car, and office, a USB-C to Garmin adapter in my keychain and backpacking kit, and someone recently made a neat little portable battery that I wore under my strap in an ultra to recharge mid-activity. Yeah, if you only use the stock Garmin cable (why isn't it at least right-angle?!) it kinda sucks, but there are lots of products that do it really well: https://www.amazon.com/dp/B0F5L632HM https://www.amazon.com/dp/B0F5L632HM https://www.amazon.com/dp/B0D4F71WQC https://www.amazon.com/dp/B0D4F71WQC https://www.amazon.com/dp/B07N18DX6Y https://www.amazon.com/dp/B07N18DX6Y I would much rather these totally waterproof surface-level pads that put the spring pogo pins in the cable than give up internal device volume to a USB receptacle or magnetic charging coils.
- nosrepa 2mo agoThe 14 month warranty is eons compared to pebble's.
- tamimio 2mo agoThe problem isn’t “one screw to change a battery”, the issue is parts cost, if they are expensive, it defeats the purpose. The other day I wanted to buy a new small container for the air freshener I have, and I found the container only is sold in packs and far more expensive than buying the freshener with one container, so I bought a new device instead with one container. Also, any watch right now should be waterproof, it won’t survive otherwise.
- VoidWhisperer 2mo agoPart of the selling point of a smartwatch, atleast in my opinion, is its ability to run apps that aren't developed by the manufacturer - for example, ones that help me be able to see my blood sugar from my CGM on my watch. They have a whole section of their site for developers, but I can't seem to find a link to any kind of store, even though they specifically say developers should register on their portal
- RobotToaster 2mo agoThe fact that they call it an "open source wearable" when only the SDK is open source feels underhanded. You'd expect at least the OS to be open source.
- prmoustache 2mo agoWell, to be honest, the OS might be ooen source but it doesn't have to be publicly available to everyone. The only way to find out is to find someone who bought it and asked for the source code of the OS/firmware and the schematics.
- luckystarr 2mo agoOS is listed as FreeRTOS.
- aa-jv 2mo ago.. so thats freely available, but the question is whether UNA are making that source available too .. would be fantastic if they did!
- Raed667 2mo agoMy only gripe with Garmin is having to throw away a perfectly decent watch just because a button stopped working after the warranty period. But IPX5 is definitely a show stopper for my kind of usage
- npodbielski 2mo agoAnybody have good recommendation of a watch that you can write your own apps for?
- jonginn 2mo agoPebble 2, perhaps?
- mafen 2mo agoWould look at banglejs
- abstract_put 2mo agoIf you're looking for modern GPS, then this watch is really it right now. It's a pretty sparse landscape. Would love to hear about other watches, I ordered this one for exactly that reason as I couldn't find anything else that fits the bill.
- ajnin 2mo agoNot to pile up on the negativity, but looking at the SDK, first reaction is it's fucking C++ ? Can't wait for my watch to crash in the middle of something. And second reaction, when I see signatures like this : void TrackFaceTotal::setDistance(float dist, bool isImperial); void TrackFaceOverview::setPace(float pace); and bool unitsImperial; littered everywhere, it makes my heart sink a little. Can't we have some data types and data modeling in 2026 please ? And leave unit conversion at the front end where it should be and not have to worry about it in every single core API ?
- LeifCarrotson 2mo agoNo, we can't. It's an ultra-low-power embedded ARM Cortex-M33 (successor to Cortex-M4) processor, the right language to use when programming it is C++. You want a minimum of abstractions and a close-to-the-metal programming environment to maximize battery life. Be grateful it's C++, it could be raw C.
- aa-jv 2mo agoJust because its C++ doesn't mean it'll crash, come on, that's just lazy thinking. It could just as well mean that it will be rock solid and industrial strength. After all, a heck of a lot of very important life-critical systems run on C++ ..
- abstract_put 2mo agoThe TrackFace stuff is in example apps (consumers of the SDK), so AFAICT it's doing what you want: unit conversion in the front end. That said, while I think you picked an example that undermines your point, the point does still stand. The SDK has a lot of rough edges (just not this specific one).
- jagermo 2mo agoi hope they get one to DC Rainmaker, he has imho one of the most comprehensive testing framework for smartwatches. i love the repairability but it should be a usable watch as well.
- emsign 2mo agoSo this one breaks when it breaks and the company is no more.
- kittikitti 2mo agoThis product category is very important to me because of security concerns. The push notifications are stored in a database on most smartwatches that are relatively simple to hack. This and other vulnerabilities represent a significant attack surface on top of smartphones. On a more social side, I find that people are more frustrated if I don't immediately reply when they know I have a smartwatch. While I understand that these watches make it easier to stay notified, I find it annoying to have more expectations in return. I still have plausible deniability with smartwatches similar to the Una watch. Otherwise, the toxicity of the technology is significantly greater.
- johmue 2mo agoawesome. good start
- mvc 2mo agoI've got one of these and I love it. Much lighter than my previous watches (I've used garmin and polar before).
- gatvol 2mo agoPity about water resistance - a blocker for me.