It support English, Spanish, Russian, French and Italian. It can be set at the watch settings. The languages to be updated are German, Turkish, Japanese, Korean, traditional Chinese, Arabic, and Spanish.

If you want change the languages: Changing the language on your phone changes the language in the watch, if the watch doesn't support certain languages, it will displayed in English.

Amazfit APP.

For more APP download and pairing problems: AMAZFIT GTR Smartwatch Pairing and APP Download Problems Fix Guide

Yes, the Amazfit GTR has a built-in GPS module, supports GPS+GLONASS binary positioning, can accurately capture the user's trajectory.

For more GPS problems: AMAZFIT GTR Common Problems about the GPS and DND Mode

Yes, it has 20mm and 22mm two kinds of band width, it can be changed, check here to get the replace method: How to change the Amazfit GTR strap and how to choose the right Amazfit GTR strap size?

There is a big difference in appearance and battery.

For detailed, you can refer to this post: Huami AMAZFIT GTR 42mm VS 47mm: all you want is here!

The 47mm version daily use mode can stay 24 days, the 42mm version daily use mode can stay 12 days.

For detailed, you can refer to this post: Huami AMAZFIT GTR 42mm VS 47mm: all you want is here!

The AMAZFIT GTR have two operate keys, you can operate by it.

For detailed, please refer to this post: Huami Amazfit GTR VS Huami Amazfit Verge 2 .

Step 1: Take out the charging base, match the copper cylinder heads with the stainless steel touchpoints of the watch, and press it to ensure that they match well enough and there are no obvious gaps.

Step 2: Connect the USB connector on the other end of the charging base to a mobile phone charger with a voltage of DC 5.0 V and an output current above 500 mA to charge your watch (A brand mobile phone charger is recommended), or you may connect the base to your PC for charging.

For more charging problems, you can refer to this post: AMAZFIT GTR Smartwatch Charging Problems Fix Guide