Thank you for your feedback. The Watch GT 6 series uses a contact synchronization mechanism instead of a manual “Add Favorite Contacts” button.
To enable contacts:
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Please upgrade your watch software to version 6.0.0.153 (C00M01) or higher.
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Open the HUAWEI Health App → go to Devices → select your watch → Device Settings → App Management → Contacts.
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Turn on the Contact Synchronization switch.
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Scroll down on the Health app’s homepage to start syncing your contacts.
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Once synced, check the Contacts section on your watch.
After this, your contacts will be available on the watch directly.

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