Apple Watch Series 3 (GPS + Cellular) features a full LTE and
UMTS cellular radio that switches seamlessly to cellular when it is away from iPhone.
The new watch features a full 4G LTE and
UMTS cellular radio antenna hidden in the display, which kicks into action the moment you step away from your iPhone.
The latest Watch includes a full LTE and
UMTS cellular radio, which allows users to make cellular calls directly from the Watch and even link it to AirPods for a full wireless experience.
Not exact matches
The Bluetooth SIG revealed the smartwatch features
UMTS 3G
cellular connectivity and a Wi - Fi
radio, both of which may allow it to make and receive calls on the wrist.