Premium Stainless Steel Buttons and Strap (with Detachment Tool) Business Meeting Recording last up to 2 hours GPS: Accurate 0.6-meters. Compatible with IOS & Android The maximum battery life: In energy-saving mode is 44 days. 5ATM Waterproof: On rainy days or wear this watch 50 meters underwater. The Essence of Ceramic Bezel: Repeatedly refined through 140 intricate processes, the hardness finally reached 1500HV, comparable to diamond. World Biggest 1.6" LTPO, Display: AMOLED+ with 480 * 480 pixel resolution, true-to-life 16.7 million colors, 108% NTSC COLOR GAMUT COVERAGE, 347 PPI, and peak brightness of up to 1000 nits. 150+ Sports Mode Clear & Stable Bluetooth Phone Call: Massage notification timely.