The Xiaomi Smart Band 9 went official a few months back, and today it's received a sibling: the Smart Band 9 Pro. Like previous Pro versions in Xiaomi's best-selling line of wearables, this one has a larger, squarer screen compared to the non-Pro Smart Bands. The Smart Band 9 Pro's display is 1.74" in diameter, AMOLED of course, with 336x480 resolution and 1,200-nit peak brightness. The entire wearable measures 43.27 x 32.49 x 10.8 mm and weighs 24.5g thanks to its aluminum alloy body. It's 5ATM water resistant, and has a 350 mAh battery that's rated for up to 21 days of use. It has...
Source: https://www.gsmarena.com/xiaomi_smart_band_9_pro_and_watch_s4_are_also_official-news-65127.php