Haha, they took that down quick!
But it seems to have been replaced with a new page holding the same info:
https://amazfit.com.sg/product/amazfit-gtr-mini-smartwatch/
Not a full spec list like the other product pages, but it lists some.
“Amazfit GTR Mini
Max Power, Max Style
Slim & Stylish Design with Stainless Steel
120+ Sports Modes & Smart Recognition5 Satellite Positioning Systems24/7 Heart Rate, SpO₂ & Stress Monitoring
15-day Battery Life”
Reasons i like it:
it’s not enormous
it has a 15 days battery life
it’s pretty cheap (SGD$199)
it has the [potential] to work on SFOS