New prices
€70
Fitbit FB424BKBK Fitness Tracker with Stress Management and Sleep Tracking
This fitness tracker is designed to help you understand your body's daily energy levels by tracking stress, sleep, and activity. It provides a Daily Readiness Score each morning, a Stress Management Score based on heart rate variability, and comprehensive sleep tracking with a Sleep Score and personalized Sleep Profile. The 24/7 heart rate monitor calculates Active Zone Minutes to measure exercise intensity. Stay connected with smart notifications for calls, texts, and apps on the color touchscreen. With water resistance to 164 feet and up to 10 days of battery life, it's built for all-day and all-night wear.
- 4 variants
- 24/7 heart rate monitoring
- Size: 3 variants
Used prices
€65
– €92
Price spread
Medium
Customer rating
6,592 ratings
Available variants (4)
Choose a variant, then open its detail page for seller-specific information.
Black
Amazon
Available to order
- Stress management score
- Daily readiness score
- 24/7 heart rate monitoring
Black/Lilac Bliss, S/L
Amazon
Available to order
- Size
- S, L
- Color
- Black, Lilac Bliss
- Weight
- 107.73
Morning Glow/Black, One Size
Amazon
Available to order
- Size
- One Size (S & L Bands Included)
- Color
- Morning Glow/Black
- Weight
- super lightweight
Variant comparison
Compare prices, availability, and key variant differences in one table.
| Feature | Black | Black/Lilac Bliss, S/L | Black, Small | Morning Glow/Black, One Size |
|---|---|---|---|---|
| Price | €69.77 | €69.77 | €69.77 | €69.77 |
| Updated | Jun 8, 2026 | Jun 8, 2026 | Jun 15, 2026 | Jun 8, 2026 |
| Availability | Available to order | Available to order | Available to order | Available to order |
| Size | — | S, L | Small | One Size (S & L Bands Included) |
| Color | — | Black, Lilac Bliss | Black | Morning Glow/Black |
| Weight | — | 107.73 | 130 | super lightweight |
| Water Resistance | — | 5 ATM | 5ATM | 50 meters |
| Battery Life | — | 10 | 10 | up to 10 days |
Amazon live offers
Offers updated
Top live offer
€69.77
New from
€69.77
Used from
€64.53
Offer count
54+
| Seller | Condition | Price | Shipping | Updated | |
|---|---|---|---|---|---|
| Third-party seller FBA | Used - Very Good | €64.53 | Free shipping | 6/19/26 | View offer |
| Third-party seller FBA | Used - Very Good | €68.14 | Free shipping | 6/19/26 | View offer |
| Sold by Amazon FBA | New | €69.77 | Free shipping | 6/19/26 | View offer |
| Third-party seller | New | €69.77 | Free shipping | 6/19/26 | View offer |
| Sold by Amazon FBA | New | €69.77 | Free shipping | 6/19/26 | View offer |
| Third-party seller FBA | New | €69.77 | Free shipping | 6/19/26 | View offer |
| Third-party seller FBA | New | €69.77 | Free shipping | 6/18/26 | View offer |
| Sold by Amazon FBA | New | €69.77 | Free shipping | 6/18/26 | View offer |
| Third-party seller FBA | New | €69.77 | Free shipping | 6/18/26 | View offer |
| Third-party seller FBA | Used - Like New | €77.19 | Free shipping | 6/18/26 | View offer |
View all offers on Amazon
Overview
Compare Fitbit FB424BKBK Fitness Tracker with Stress Management and Sleep Tracking variants, pricing tiers and key differences.
Learn moreHow variants differ
- Size
- Color
- Weight
Who each variant is for
- Pick color and finish only after deciding on hardware requirements.
Reviews
4.3 / 5
from 6,592 ratings
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Product confidence
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