Withings Pulse Ox Activity Tracker for iOS & Android - Blue
Withings Pulse HR – Water Resistant Health and Fitness Tracker with Heart Rate and Sleep Monitor, Sport and Activity Tracking : Amazon.co.uk: Sports & Outdoors
Withings Steel HR - Hybrid Smartwatch - Activity Tracker with Connected GPS, Heart Rate Monitor, Sleep Monitor, Smart Notifications, Water Resistant with 25-day battery life : Amazon.co.uk: Sports & Outdoors
Withings Go review: back to basics, but for 80 bucks - The Verge