Apple Watch Series 4 GPS 40 mm A1977 Batteries
Replace a cracked screen or a dead battery in your GPS only 40mm Series 4 Apple Watch.
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Parts that work with Apple Watch Series 4 GPS 40 mm A1977:
Apple Watch (40 mm Series 4) Battery
Replace a dead or damaged battery in a 40 mm Series 4 Apple Watch.
The 40 mm Apple Watch Series 4 GPS model is identified by the model number A1977 visible when the band is removed.
The GPS Only models do not have wireless 3G capability and are not capable of being connected to the internet without being paired to an iPhone. GPS models include built-in GPS and GLONASS as well as a barometric altimeter and Siri support.