Fitbit Activity Trackers
Google Fitbit Inspire 3 Activity Tracker
size: One Size. Option: Black/Midnight Zen.
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Offer checked 13 November 2026. Price and availability may change.
A closer look
What matters before you buy
Size and fit
This is the One Size option. Match it to the size you need, and check the manufacturer's measurements if you're switching models or brands.
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For a different size, compare WHOOP Peak: Talla única, alongside One Size for this option.
| Product | Size | Shop the option |
|---|---|---|
 This optionGoogle Fitbit Inspire 3 Activity Tracker | One Size | £84.00View on Amazon |
| One Size | Check retailer priceView on Amazon | |
| Talla única | £229.00View on Amazon | |
| 2.41 cm | £22.50View on Amazon |
- This option
Google Fitbit Inspire 3 Activity Tracker
- Size
- One Size
£84.00View on Amazon - Size
- One Size
Check retailer priceView on Amazon- Size
- Talla única
£229.00View on Amazon- Size
- 2.41 cm
£22.50View on Amazon
The exact specification
Product details
- Size
- One Size
- Option
- Black/Midnight Zen
Full listing and model details
- Retailer listing
- Google Fitbit Inspire 3 Activity Tracker with 6-months Premium Membership Included, up to 10 days battery life and Daily Readiness Score, Black/Midnight Zen
- Brand
- Fitbit
- Model
- FB424BKBK
- Condition
- Used
- ASIN
- B0B6WRFY5S
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- size
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- Colour
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- Model
- FB422BKBK
Check retailer price
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Reflex Active Series 8 Activity Tracker – Black
- size
- 2.41 cm
- Colour
- Black
- Model
- RA08-2118
£22.50
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Tikkers Series 1 Printed Black Football Silicone Strap Activity tracker
- size
- 40 millimeters
- Colour
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- Model
- TKS01-0006
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Sources & our approach
Product details come from the retailer’s listing, checked 13 November 2026. Our buying notes explain the listed differences and questions to resolve before ordering. We have not handled or tested this product.
Our editorial approach