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
€54
– €60
Price spread
Medium
Customer rating
36,956 ratings
Available variants (4)
Choose a variant, then open its detail page for seller-specific information.
Black
Retailer
Available to order
- Stress management score
- Daily readiness score
- 24/7 heart rate monitoring
Black/Lilac Bliss, S/L
Retailer
Available to order
- Size
- S, L
- Color
- Black, Lilac Bliss
- Weight
- 107.73
Morning Glow/Black, One Size
Retailer
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 | €70.19 | €70.19 | €70.19 | €70.19 |
| Updated | Sep 23, 2026 | Sep 15, 2026 | Sep 16, 2026 | Sep 20, 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 |
Live offers
Partner offers are temporarily unavailable for this product.
Partner offers are temporarily unavailable for this product.
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
4.2 / 5
from 36,956 ratings
No written reviews yet
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| Brand | Fitbit | USMECBL | ZKSSGY | PJIVE | APPBYER | Moremore |
| Model | FB424BKBK | C60 | DS10 | 70 | C60 | |
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| Price | €70.19 | €30.72 | €21.94 | €70.22 | €19.17 | €26.33 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 29, 2026 | Mar 25, 2026 | May 5, 2026 | Apr 10, 2026 | May 13, 2026 | Apr 23, 2026 |
| Size | Small | Adjustable | M | Small | ||
| Weight | 130 | <num1>, <num2> | 25 | 18.4 | <num1>, <num2> | <num1>, <num2> |
| Material | Silicone | Silicone | Nylon, Silicone | |||
| Battery Life | 10 | 10, 14 | 7 | 40, 60 | <num_from>, <num_to> | 7 |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth |
| Display Size | 1.47 | 1.1 | 1.1 | 1.1 | ||
| Display Type | AMOLED | Touchscreen, Color, AMOLED | AMOLED | AMOLED | ||
| Health Sensors | Heart Rate | Blood Oxygen, Heart Rate | Blood Oxygen, Blood Pressure, Heart Rate | Heart Rate, Blood Pressure, SpO2 | Heart Rate, Blood Pressure, SpO2 | |
| OS Compatibility | Android, iOS | Android, iOS | Android, iOS | Android, iOS | Android, iOS | |
| Water Resistance | 5ATM | IP68 | IP68 | IP68 | 5 ATM | IP68 |
| Bluetooth Version | 5.0 | 5.3 | 5.0 | 5.0 | 5.0 | |
| GPS | Via Smartphone | None | None | |||
When this device makes sense
Product confidence
Reviews
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