Fitbit Versa 4 Fitness Smartwatch
- Screen Size: 1.6 inches
- Battery average life: 6 days
- Gps Geotagging Functionality: Built-In GPS
- Supported Satellite Navigation System: GPS
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B0B4MWCFV4Model: FB523BKBK-USCategory: Smartwatches
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Overview
Fitbit's Versa 4 pairs built-in GPS with 24/7 heart rate tracking and a Daily Readiness Score, and ships with a 3-month Google Health Premium membership plus both small and large bands.
Now under Google's ownership, the Versa 4 leans on that Health Premium subscription for its deeper coaching and analytics rather than putting everything in the free tier.
- Built-in GPS with a workout intensity map
- 24/7 heart rate plus Daily Readiness and Active Zone Minutes
- Water resistant to 50 meters
- 3-month Google Health Premium membership included
Who it's for
Suits someone who wants GPS-tracked workouts and continuous heart rate in a lighter, cheaper package than a full smartwatch. Less suited to anyone wanting guaranteed long-term app support or multi-week battery life, based on reviewer experience.
Pros and cons
- Built-in GPS with 24/7 heart rate in one band
- Two band sizes included, covering 5.1 to 8.6 inch wrists
- 3-month Google Health Premium membership included
- On-wrist calls, texts and Alexa
Performance notes
GPS and a workout intensity map track 40-plus exercise modes automatically, while the Daily Readiness Score and Active Zone Minutes translate heart rate and activity into a single daily number. Sleep stages, a Sleep Score, SpO2 and a Stress Management Score round out the health tracking, and the watch is rated water resistant to 50 meters with small and large bands covering 5.1 to 8.6 inch wrists.
Specifications
| Brand | Fitbit |
|---|---|
| Model | FB523BKBK-US |
| Dimensions & fit | |
| Screen Size | 1.6 inches |
| Item Weight | 0.39 pounds |
| Band length | 1.6 inches |
| Item Dimensions | 1.6 × 0.4 × 1.6 inches |
| Water Resistance Depth | 50 meters |
| Capacity & performance | |
| Memory storage capacity | 4 GB |
| Battery capacity | 0.35 amps |
| Age Range Description | Adult |
| Power & efficiency | |
| Battery average life | 6 days |
| Battery charge time | 0.2 hours |
| Battery cell type | Lithium Ion |
| Construction & materials | |
| Band material type | Silicone |
| Case material type | Plastic Or Resin Or Nylon |
| Color | Black/Graphite |
| Band Color | Black |
| Compatibility & installation | |
| Connectivity technology | Ethernet |
| Compatible devices | Smartphone |
| Human Interface Input | Touchscreen |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Supported Satellite Navigation System | GPS |
| Warranty description | 1 year |
| Warranty type | Limited |
| Supported application | GPS, Phone |
| Other details | |
| Gps Geotagging Functionality | Built-In GPS |
| Display type | AMOLED |
| Waterproof Rating | IP67 |
| Water resistance level | Water Resistant |
| Shape | Square |
| Closure Type | Zipper |
| Wireless Provider | Unlocked |
| Resolution | 348 x 442 |
| Wearable Computer Type | Smart Watch |
| Sport type | Fitness |
| Communication feature | Yes |
| Wireless compability | Bluetooth |
| Operating System | Ios |
| Style Name | Modern |
| Target Audience | Unisex Adults |
| Controller Type | Android |
Frequently asked questions
Does the Fitbit Versa 4 have built-in GPS?
Yes, along with a workout intensity map for tracking routes without a phone.
What wrist sizes does it fit?
It ships with both a small band for 5.1 to 7 inch wrists and a large band for 6.5 to 8.6 inches.
Is Fitbit Premium included?
A 3-month Google Health Premium membership is included, covering personalized coaching and advanced analytics.