Check your device compatibility
If your device is on this list and not locked by your carrier, you are good to go !
Apple Watch Edition Series 5
Apple Watch Edition Series 6
Apple Watch Edition Series 7
Apple Watch Series 10 Aluminum
Apple Watch Series 3 Aluminum
Apple Watch Series 4 Aluminum
Apple Watch Series 5 Aluminum
Apple Watch Series 6 Aluminum
Apple Watch Series 7 Aluminum
Apple Watch Series 8 Aluminum