Product Price Heart Rate Monitor Step Counter Calories Burned Sleep Tracking Activity Tracking Battery Life (hours) Waterproof Rating
Samsung Galaxy Watch 6
US
£224.72 Yes (step tracking) Yes (active calories tracked) Over 90 workouts, automatic workout detection and personalized HR zones Up to 40 hours 5ATM and IP68

The Galaxy Watch 6 offers advanced health sensors including heart rate, ECG, SpO2, sleep coaching and body composition features, plus automatic activity tracking for 90+ workouts. It suits Android users who want a full-featured fitness and health smartwatch with Wear OS and strong sleep tools.

Hume Health Hume Band 2.0
US
£149.09 Yes (step count) Yes (daily calories burned) Yes (activity and workout tracking) 4-5 days IP68

A screenless wrist wearable that continuously monitors heart rate, HRV, SpO2, sleep stages, activity, and metabolic metrics, aimed at recovery and longevity insights. Suits users who want detailed health and sleep tracking without a smartwatch display and prefer a one-time purchase model.

Whoop Whoop 4.0 (membership required)
US
£149.09 Yes (estimated calories) Automatic activity detection and strain scoring 5 days Water-resistant for in-water wear

Whoop 4.0 is a screenless, membership-tied wearable focused on continuous heart-rate, HRV, sleep, and strain insights with advanced sensors including SpO2 and skin temperature. It suits athletes and users who want continuous biometric coaching and recovery guidance rather than a traditional smartwatch. Wear is intended 24/7 with automatic activity detection.

Garmin Vivoactive 5
US
£149.08 Yes (step counter) Yes (calorie tracking) More than 30 sports apps; activity tracking (steps, active minutes) Up to 11 days (smartwatch mode); 17 hours GPS all-systems-on; 21 hours GPS-only 5 ATM

Compact AMOLED fitness smartwatch with continuous heart-rate monitoring, sleep and activity tracking, built-in GPS and multiple sports profiles. Suited to everyday users and recreational athletes who want Garmin health metrics in a smaller, affordable package.

Whoop Whoop 5.0 (band only)
US
£149.09 Pedometer (step counting) Calories burned measured 24/7 activity and strain tracking, VO2 Max and heart rate zones 14+ days Water resistant to 32.8 feet

WHOOP 5.0 is a screenless, band-style health and fitness tracker offering continuous heart-rate monitoring, sleep staging, workout strain metrics, and advanced recovery coaching. It suits users who want 24/7 biometric tracking and data-driven coaching with a long battery life and wearable charging pack.

Amazfit Active 2
US
£74.91 Yes Yes 160+ workout modes, GPS and multi-satellite positioning Up to 10 days typical use (19 days power saver) 5 ATM

The Amazfit Active 2 is a stylish AMOLED smartwatch with advanced health sensors, continuous heart-rate monitoring, sleep-stage tracking, GPS mapping, and 160+ workout modes. It suits users who want strong fitness features and long battery life at an affordable price.