How To Put Sim Card In Apple Watch Series 5. Each cellular plan will be billed separately. On your iPhone open the Apple Watch app.

Each cellular plan will be billed separately. You can complete a call to emergency services when youre travelling abroad just by pressing and holding the side button. From the Watch tap Settings General About.
Apple Watch Series 5 - Support Overview.
Access the About screen. The SIM card number appears in the ICCID field. Open the rubber lid on the side and Insert the sim card with the chip facing up as demonstrated on the figure above. Access the About screen.
