Fitbit Versa 4 Fitness Smartwatch

Fitbit's fitness smartwatch — a full watch-style device with the largest display in the lineup. 1.58″ color AMOLED touchscreen (336 × 336 px) with always-on display option. Built-in GPS for phone-free tracking. On-wrist Bluetooth calling with built-in speaker and microphone. Amazon Alexa voice assistant. Google Maps, Google Wallet (NFC), and YouTube Music. 40+ exercise modes. SpO2, sleep tracking, Active Zone Minutes. 5 ATM water resistance. Up to 6-day battery with fast charge (12 min = 1 full day). Available in three colors: Black/Graphite, Waterfall Blue/Platinum, and Pink Sand/Copper Rose.

What's in the box

Fitbit Versa 4 smartwatch
Small infinity band (S) and large infinity band (L)
Charging cable

Smart features & calling

On-wrist Bluetooth phone calls (built-in speaker + microphone)
Amazon Alexa voice assistant (long-press side button)
Google Maps turn-by-turn directions
Google Wallet (NFC contactless payments)
YouTube Music controls
Call, text, and app notifications
Quick replies to messages (Android only)
Timer, stopwatch, alarms
Find My Phone
Customizable clock faces

Why you'd choose this smartwatch

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
EDA / Stress sensor	No (Stress Management Score uses HR + activity + sleep data)
SpO2	Yes (overnight blood oxygen monitoring)
Skin temperature	Variation viewable in Fitbit app
GPS	Built-in GPS (phone-free)
NFC	Yes (Google Wallet contactless payments)
Speaker / Microphone	Yes (on-wrist Bluetooth calling)
Voice assistant	Amazon Alexa (long-press side button)
Exercise modes	40+
Gym equipment HR streaming	No
Battery life	Up to 6 days (varies with GPS use and AOD setting)
Fast charge	12 min = 1 day of use · Full charge ~2 hours
Water resistance	5 ATM (50 m) — pool, shower, rain safe
Connectivity	Bluetooth 5.0, NFC
Sensors	Accelerometer, altimeter, ambient light sensor, 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