4 ms·

is supposed to take at most 6ms. Thus the requirement for 4S or later iOS devices. I don't follow the causation between the first and second sentences. Are iPh

is supposed to take at most 6ms. Thus the requirement for 4S or later iOS devices. I don't follow the causation between the first and second sentences. Are iPhone 4 not fast enough or do they lack the proper BlueTooth technology?

randomdata 13y ago
The latter. The iPhone 4S was the first model with BTLE hardware.