Product Price Heart Rate Monitor Step Counter Calories Burned Sleep Tracking Activity Tracking Battery Life (hours) Waterproof Rating
Fitbit Inspire 3
US
£66.26 Steps, distance displayed on wrist and in app Calories displayed on wrist and in app Active Zone Minutes, exercise modes, SmartTrack automatic exercise recognition, connected GPS (phone) Up to 10 day battery 5 ATM (50 m)

Small, lightweight fitness tracker with 24/7 heart-rate monitoring, sleep stage tracking, Active Zone Minutes and up to 10 days of battery life. Suits users who want core health and activity metrics in a simple, affordable band without built-in GPS.

Apple Watch SE 3
US
£163.04 counts steps (built-in pedometer) estimates active calories burned during workouts and daily activity Activity rings (Move, Exercise, Stand) and workout tracking (multiple workout types) up to 18 hours (up to 32 hours in Low Power Mode) 50m

The Apple Watch SE 3 offers core Apple Watch health and fitness features including optical heart rate monitoring, Sleep Score, wrist temperature sensing, Activity rings, and an Always-On Retina display, powered by the S10 chip. It suits anyone seeking an affordable, full-featured Apple smartwatch without ECG or blood oxygen sensors.

Oura Ring 4
US
£259.82 Tracks steps (step counter) Estimates calories burned Automatic detection of 40+ activities and activity score 5-8 days Water resistant up to 100 m / 328 ft

Oura Ring 4 is a smart ring focused on continuous health and sleep monitoring with 24/7 heart rate, SpO2 sensing, activity detection and advanced sleep analysis. It suits users who want a compact, all-day wearable for sleep, recovery and general activity insights rather than live workout metrics.

Samsung Galaxy Watch 8
US
£260.56 Yes (step tracking) Yes (calorie burn tracking) Workout and activity tracking with running coach and activity detection 325 mAh (40mm) or 435 mAh (44mm) IP68 and 5 ATM

The Galaxy Watch 8 is a Wear OS smartwatch with advanced health sensors, sleep coaching, AI running guidance, and multi-day battery options depending on size. It suits users who want comprehensive fitness and sleep tracking plus Google Gemini integration in a lightweight design.