OuraOura Ring 5
Oura Ring 5
Oura
Promising research
Google Fitbit
Fitbit Charge 6
Promising researchWhat does this mean? ›
£139.99at store.google.com
Check availability
Price checked
Buy now at store.google.com- £139.99 at Google Store
- 7-day battery
We may earn a commission if you buy through our links. How we choose ›
£139.99 at Google Store
- form
- Band with colour screen
- battery
- Up to 7 days
- sensors
- Optical heart rate, EDA, skin temperature, GPS
Where we checked it: store.google.com ›
Why we picked it
Fitbit wristbands have the largest body of sleep validation of any consumer brand, including a 2019 systematic review and meta-analysis. Charge 6 lasts about 7 days and costs £139.99 from the Google Store, with three months of Google Health Premium included.
Best for
A lower-cost band with a screen, good step and heart rate tracking, on iPhone or Android
Not for
People who want every sleep insight without paying for Google Health Premium after the trial
The details that matter.
- • £139.99 at Google Store
- • 7-day battery
- • Most-studied brand for wrist sleep tracking
- • Some features need Premium after 3 months
Specifications
- form
- Band with colour screen
- battery
- Up to 7 days
- sensors
- Optical heart rate, EDA, skin temperature, GPS
- subscription
- Optional (3 months Premium included)
How strong is the research? What our grades mean ›
- Strong research
- Independent certification or lab data for the specific claim.
- Promising research
- The material is well supported, but there is no product-level testing.
- Early research
- Little independent research.
- Mixed research
- Research findings disagree.
- £
- Under £20
- ££
- £20 to £79
- £££
- £80+
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Best Fitness and Sleep Trackers for Longevity UK (2026): Rings, Bands and Watches Compared
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