https://www.tomtom.com/en_gb/sports/.../black-large/?
Bargain activity tracker down to £65.99 but if you use the code WELCOMEUK2017 you will get a further £8 off + delivery free making it £57.99.
Battery lifetime
Activity tracking: up to 3 weeks
GPS: up to 11 hours
GPS + Music: up to 5 hours
Waterproofing
40 m / 130 feet (5 ATM)
Display size
22x25 mm
Activity Measurements
Steps
Active minutes
Distance
Calories burnt
Sleep
Storage
3 GB