Fitbit Versa 4 Fitness Smartwatch
The Versa 4 is Fitbit's fitness smartwatch — a full watch-style device with the biggest screen in the lineup and smartwatch conveniences the fitness bands can't match. 1.58″ color AMOLED touchscreen (336 × 336 px) with always-on display option. Built-in GPS for phone-free pace and distance. Optical heart rate sensor with 24/7 monitoring. SpO2 blood oxygen tracking. On-wrist Bluetooth calling via built-in speaker and microphone. Amazon Alexa voice assistant. Google Maps turn-by-turn directions. Google Wallet (NFC) contactless payments. YouTube Music controls. 40+ exercise modes with real-time stats. Active Zone Minutes, Daily Readiness Score, Sleep Score, Cardio Fitness (VO2 Max). 5 ATM water resistance (50 m). Up to 6-day battery life. Fast charge: 12 min = 1 day of use. Bluetooth 5.0, NFC. Aluminum case with physical side button. Weight: ~1.3 oz (37 g) with infinity band. S & L infinity bands included. MPN: FB523BKBK-US (Black/Graphite). UPC: 810073611450. MSRP: $229.95.
Our Take: The Versa 4 is Fitbit's fitness smartwatch — the one you pick when you want a real watch-style device with a big, bright display and smart features beyond what a fitness band can offer. The 1.58″ AMOLED touchscreen is gorgeous and easy to read in sunlight. You get on-wrist Bluetooth calling with a built-in speaker and mic, Amazon Alexa for hands-free voice commands, Google Wallet for tap-to-pay, Google Maps directions, and YouTube Music controls. Fitness tracking is strong: built-in GPS, 40+ exercise modes, Active Zone Minutes, Daily Readiness Score, and a Cardio Fitness Score. What the Versa 4 does NOT have: ECG (only the Charge 6 and Sense 2 have that), no EDA stress sensor, and no gym equipment heart rate streaming. The battery runs up to 6 days — shorter than the Charge 6 (7) or Inspire 3 (10), but fast charge means 12 minutes gets you a full day. At $229.95, you're paying $70 more than the Charge 6 primarily for the bigger screen, on-wrist calling, and Alexa. The honest take: if you want a Fitbit that looks and feels like a real smartwatch on your wrist and you value the big screen and phone calls, the Versa 4 delivers that. If fitness tracking accuracy and health sensors are the priority, the Charge 6 gives you more for less.
Why you'd choose this smartwatch
- Large, vibrant 336 × 336 px color touchscreen with always-on display option. Easy to read during workouts, in sunlight, and while glancing at notifications. Same display as the Sense 2.
- Built-in speaker and microphone let you answer and make Bluetooth calls from your wrist. Long-press the side button for Amazon Alexa voice commands. Neither the Charge 6 nor Inspire 3 can do this.
- Track pace, distance, and route during outdoor runs, walks, and rides without carrying your phone. View your workout map with heart rate zones overlaid in the Fitbit app.
- NFC tap-to-pay with Google Wallet. Turn-by-turn directions from Google Maps on your wrist. Control YouTube Music playback. All the Google essentials, right on your watch.
- Track runs, cycling, swimming, HIIT, weights, yoga, and more. SmartTrack auto-detects workouts. Active Zone Minutes reward harder effort. Real-time stats on the big display.
- Up to 6 days on a charge with typical use. When you're low, 12 minutes on the charger gives you a full day's battery. Full charge takes about 2 hours.
- 15% lighter and 10% thinner than the Versa 3. Aluminum case with physical side button. Comfortable for all-day and overnight wear. Interchangeable infinity bands.
- Automatic sleep stage tracking (light, deep, REM), daily Sleep Score, Smart Wake alarm, and overnight SpO2 blood oxygen monitoring. Sleep Profile with Premium.
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Who this smartwatch is perfect for
- People who want a real smartwatch experience — big screen, phone calls from your wrist, and voice assistant — in the Fitbit ecosystem.
- Runners and cyclists who want GPS and a large, readable display for real-time stats during outdoor workouts.
- Anyone who values Google Wallet tap-to-pay, Maps directions, and YouTube Music controls throughout their day.
- Users upgrading from a fitness band who want a more versatile daily-wear device that looks like a proper watch.
- People who want Alexa on their wrist for quick voice commands, timers, weather, and smart home control.
Consider these alternatives if…
- You want the best fitness tracking value with ECG, gym HR streaming, and a longer battery → Fitbit Charge 6 at $159.95
- You want the cheapest Fitbit for basic steps, sleep, and heart rate → Fitbit Inspire 3 at $99.95
- You want every health sensor — ECG, continuous stress tracking, skin temp — plus the smartwatch → Fitbit Sense 2 at $299.95
Specifications
| Specification | Value |
|---|---|
| Display | 1.58″ color AMOLED touchscreen (336 × 336 px) |
| Always-on display | Yes |
| Heart rate sensor | Optical (24/7 continuous) |
| ECG | No (see Charge 6 or Sense 2) |
| EDA / Stress sensor | No (Stress Management Score uses HR + activity + sleep) |
| SpO2 | Yes (overnight blood oxygen monitoring) |
| Skin temperature | Variation viewable in Fitbit app only |
| GPS | Built-in GPS |
| NFC | Yes (Google Wallet contactless payments) |
| Speaker / Microphone | Yes (on-wrist Bluetooth calling) |
| Voice assistant | Amazon Alexa |
| Exercise modes | 40+ |
| Gym equipment streaming | No (see Charge 6) |
| Battery life | Up to 6 days (varies with use) |
| Fast charge | 12 min = 1 day of use; full charge ~2 hours |
| Water resistance | 5 ATM (50 m) |
| Connectivity | Bluetooth 5.0, NFC |
| Sensors | Accelerometer, altimeter, ambient light, vibration motor, SpO2, skin temp |
| Weight (with band) | ~1.3 oz (37 g) |
| Weight (watch only) | ~0.7 oz (20 g) |
| Dimensions | 40.5 × 40.5 × 11.2 mm |
| Band sizes | S: 5.1″–6.9″ / L: 6.2″–8.2″ (both included) |
| Compatibility | iOS 16.4+ / Android 9+ |
| Colors | Black/Graphite, Waterfall Blue/Platinum, Pink Sand/Copper Rose |
| MPN | FB523BKBK-US (Black/Graphite) |
| UPC | 810073611450 (Black/Graphite) |
| MSRP | $229.95 USD |
Versa 4 vs Inspire 3 vs Charge 6 vs Sense 2 — Full Comparison
Four Fitbit devices across three tiers. The Versa 4 delivers the smartwatch experience with fitness tracking at a mid-range price. Focus or hover a row label for a plain-English definition.
| Feature |
Versa 4★ You Are Here
|
Inspire 3Entry
|
Charge 6Best Value
|
Sense 2Premium
|
|---|---|---|---|---|
| Heart rate sensor?Optical sensor uses LED light to measure blood flow through the wrist. ML-enhanced means machine learning improves accuracy during fast movement. | Optical | Optical | Optical (ML-enhanced) | Optical |
| ECG app?Electrocardiogram — checks your heart rhythm for atrial fibrillation (AFib). Place fingers on the sensor for 30 seconds. | No | No | Yes | Yes |
| EDA / Stress sensor?Electrodermal activity sensor measures sweat gland changes to assess stress. Spot = manual scan. Continuous (cEDA) = all-day passive tracking. | No | No | Spot EDA | Continuous cEDA |
| SpO2?Blood oxygen saturation monitoring. Tracks overnight to detect potential breathing issues. | Yes | Yes | Yes | Yes |
| Skin temperature?Tracks variation in skin temperature overnight. Can indicate illness, menstrual cycle changes, or recovery. | No | Yes | Yes | Yes |
| Irregular rhythm alerts?Automatic notifications if the heart rate sensor detects patterns consistent with atrial fibrillation. | Yes | Yes | Yes | Yes |
| Gym HR streaming?Sends real-time heart rate to compatible gym equipment — Peloton, NordicTrack, Tonal. | No | No | Yes | No |
| Feature |
Versa 4★ You Are Here
|
Inspire 3Entry
|
Charge 6Best Value
|
Sense 2Premium
|
|---|---|---|---|---|
| Built-in GPS?Tracks pace, distance, and route without your phone nearby. | Yes | Phone GPS only | GPS + GLONASS | Yes |
| Exercise modes?Number of sport/activity types the device can track. | 40+ | 20+ (40+ via update) | 40+ | 40+ |
| Google Wallet (NFC)?Tap your wrist to pay at any contactless terminal. | Yes | No | Yes | Yes |
| Google Maps?Turn-by-turn navigation on your wrist. Requires phone connection. | Yes | No | Yes | Yes |
| YouTube Music?Control music playback on your wrist. | Yes | No | Yes | Yes |
| On-wrist calling?Take phone calls from the device using built-in speaker and microphone. | Yes | No | No | Yes |
| Voice assistant?Hands-free voice control for quick tasks. | Alexa | No | No | Alexa |
| Notifications | Calls, texts, apps | Calls, texts, apps | Calls, texts, apps | Calls, texts, apps |
| Feature |
Versa 4★ You Are Here
|
Inspire 3Entry
|
Charge 6Best Value
|
Sense 2Premium
|
|---|---|---|---|---|
| Form factor?Band = slim tracker. Smartwatch = larger watch-style device. | Smartwatch | Fitness band | Fitness band | Smartwatch |
| Display?Screen size and type. AMOLED = bright, vibrant colors with deep blacks. | 1.58″ AMOLED | 0.81″ AMOLED | 1.04″ AMOLED | 1.58″ AMOLED |
| Display resolution | 336 × 336 px | Color | Color | 336 × 336 px |
| Battery life?Maximum battery with typical use. GPS and AOD reduce this. | Up to 6 days | Up to 10 days | Up to 7 days | Up to 6 days |
| Fast charge | 12 min = 1 day | No | No | 12 min = 1 day |
| Water resistance?5 ATM = safe for swimming and showering. | 5 ATM (50 m) | 5 ATM (50 m) | 5 ATM (50 m) | 5 ATM (50 m) |
| Weight?Weight with default band attached. | ~1.3 oz (37 g) | ~0.7 oz (20 g) | 1.1 oz (31 g) | ~1.3 oz (37.6 g) |
| Physical button | Physical side button | No | Haptic side button | Physical side button |
| Speaker / Mic | Yes | No | No | Yes |
| MSRP?Manufacturer's suggested retail price in USD. | $229.95 | $99.95 | $159.95 | $299.95 |
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Fitbit Versa 4 — Frequently Asked Questions
Is the Versa 4 better than the Charge 6?
It depends on what you value. The Versa 4 ($229.95) is a full smartwatch with a large 1.58″ display, on-wrist phone calling, Amazon Alexa, and a watch-style form factor. The Charge 6 ($159.95) is a slim fitness band with ECG (Versa 4 lacks this), more accurate ML-enhanced heart rate, gym equipment HR streaming, a longer 7-day battery (vs 6), and costs $70 less. Both share GPS, NFC, Google Maps, Google Wallet, YouTube Music, and 40+ exercise modes. For pure fitness tracking, the Charge 6 wins. For a smartwatch with calls and a big screen, choose the Versa 4.
Is the Versa 4 better than the Inspire 3?
Yes, significantly. The Versa 4 adds built-in GPS, a much larger 1.58″ display, on-wrist calling, Alexa, NFC payments, Google apps, 40+ exercise modes (vs 20+), and a physical side button. The Inspire 3 ($99.95) counters with a much lower price, longer battery (10 days vs 6), lighter weight, and a slimmer form factor.
Is the Versa 4 better than the Sense 2?
The Sense 2 ($299.95) adds ECG, continuous EDA stress tracking (cEDA), skin temperature tracking, and a gyroscope — all of which the Versa 4 lacks. Both share the same 1.58″ display, on-wrist calling, Alexa, GPS, NFC, Google apps, and 40+ exercise modes. If advanced health monitoring matters, the Sense 2 justifies the $70 premium. If you don't need those extra sensors, the Versa 4 saves you $70.
Does the Versa 4 have an ECG sensor?
No. The Versa 4 does not have an ECG sensor. In the current Fitbit lineup, only the Charge 6 and Sense 2 offer ECG for atrial fibrillation detection. The Versa 4 does have irregular heart rhythm notifications via the optical sensor, but that is not the same as an on-demand ECG reading.
Can you take phone calls on the Versa 4?
Yes. The Versa 4 has a built-in speaker and microphone, allowing you to answer and make Bluetooth calls directly from your wrist when your phone is nearby. This is a feature the Charge 6 and Inspire 3 do not have. The Sense 2 also supports on-wrist calling.
Does the Versa 4 have Google Wallet and Google Maps?
Yes. The Versa 4 supports Google Wallet via NFC for contactless payments and Google Maps for turn-by-turn directions on your wrist. It also supports YouTube Music playback controls. These features are shared with the Charge 6 and Sense 2 but are absent from the Inspire 3.
How long does the Versa 4 battery last?
Up to 6 days on a single charge with typical use. Fast charge gives you a full day's use in just 12 minutes. Heavy GPS use and always-on display will reduce battery life. For comparison: Inspire 3 lasts 10 days, Charge 6 lasts 7 days, Sense 2 also lasts 6 days with fast charge.
Does the Versa 4 require Fitbit Premium?
The Versa 4 works without Premium for core features — heart rate, GPS, exercise tracking, sleep stages, notifications, Google apps, calling, and Alexa. Premium ($9.99/month or $79.99/year) unlocks Daily Readiness Score, Sleep Profile, advanced analytics, guided workouts, and wellness reports. Includes 6 months free for new and returning users.
Need help choosing? Call us at 1-800-403-8285 or 215-259-2700. Our team is happy to help you find the right fitness tracker.