Latest Bluetooth Smart Watch with Camera for Nokia G300 G50 XR20 G20 G10 | eBay
For One Plus Nokia Google Nexus Htc L16 Bluetooth Smart Watch Phone Support 2g Sim Tf Card Dial Call Fitness Tracker Smartwatch - Smart Watches - AliExpress
Nokia's Steel HR smartwatch has up to 24 days of battery: $163.50 (Reg. $200)