Heart and Health Monitoring - 1.4” (34 mm),Circular Super AMOLED (360 x 360) - Full Color Always On Display - Corning Gorilla Glass DX+ - Processor: 1.15 GHz Dual-Core - Maximum Depth of Water Resistance: 164 feet Lightweight Design - 5ATM + IP68 / MIL-STD-810G - Accelerometer, Gyro, Barometer, HRM, Ambient Light - Compatible with a 20mm standard strap Advance Auto Fitness Tracker and Coaching - 768MB RAM + 4GB Internal Memory - Battery: 340mAh - Bluetooth 5.0 Compatibility: Samsung, other Android: Android 5.0 or higher & RAM 1.5GB above - iPhone: iPhone 5 and above, iOS 9.0 or above With a thin, light design, Galaxy Watch Active2 is fit for any time and for any occasion, from working out to sleeping in This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.