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Wearable comparison

WHOOP 4.0 vs Google Pixel Watch 3

Compare battery life, health tracking, display and fit.

Compared products
01Selected
WHOOP 4.0 Sensor

WHOOP 4.0 Sensor

  • Screenless tracker.
  • Approximately 5 days.
  • Bluetooth 4.2.
  • IP68 water and dust resistance.
  • PPG heart-rate sensor.
KSh 36,000In Stock
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02
Google Pixel Watch 3

Google Pixel Watch 3

  • Qualcomm Snapdragon W5 Gen 1; Cortex-M33 coprocessor processor.
  • 2 GB RAM in this version.
  • 32 GB storage in this version.
  • Runs Wear OS 5.
  • Wi-Fi 6 support.
KSh 37,500In Stock
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Huawei Watch GT 5 ProKSh 34,000
Huawei Watch GT 6 ProKSh 33,500
WHOOP ONE 5.0 SensorKSh 37,000
Amazfit GTR 3 ProKSh 20,000
Apple Watch Series 8KSh 50,000
Apple Watch SE 2KSh 28,500
Apple Watch UltraKSh 90,000
2 of 4 products

Our quick verdict

The WHOOP 4.0 Sensor, a screenless tracker you read in the WHOOP app, lasts longer between charges (about 5 days), works with Android phones and iPhones and gives daily recovery and strain scores, while the Google Pixel Watch 3, a smartwatch with a 1.2-inch OLED screen, takes ECG heart-rhythm readings, has built-in GPS for runs without your phone and is swimproof to 50 m.

Battery life

WHOOP 4.0 Sensor
Approximately 5 days
Google Pixel Watch 3
Up to 24 hours per charge

Software

WHOOP 4.0 Sensor
WHOOP
Google Pixel Watch 3
Wear OS 5

Connections

WHOOP 4.0 Sensor
Bluetooth 4.2
Google Pixel Watch 3
Wi-Fi 6, Bluetooth 5.3

Display

WHOOP 4.0 Sensor
Screenless tracker
Google Pixel Watch 3
1.2-inch OLED display, 60 Hz, 320 ppi

Sensors

WHOOP 4.0 Sensor
PPG heart-rate sensor, accelerometer
Google Pixel Watch 3
Compass, altimeter

Key differences

The main differences to help you choose.

WHOOP 4.0 Sensor

  • Longer rated battery life: about 5 days (vs 24 hours).
  • Works with Android phones and iPhones.
  • Screenless: worn day and night, with results read in the WHOOP app.
  • Daily recovery and strain scores.

Google Pixel Watch 3

  • Screen on the wrist for the time, notifications and workout stats.
  • ECG heart-rhythm readings.
  • Built-in GPS (the other uses the phone's GPS).
  • Swimproof: water resistant to 50 m (vs 10 m).
  • Syncs with third-party apps such as Strava and Apple Health.
  • Takes calls from the wrist over Bluetooth.

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

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6 priorities selected.
How each product answers the selected priorities
PriorityWHOOP 4.0 SensorGoogle Pixel Watch 3
Battery lifeApproximately 5 daysUp to 24 hours per charge
SoftwareWHOOPWear OS 5
ConnectionsBluetooth 4.2Wi-Fi 6, Bluetooth 5.3
DisplayScreenless tracker1.2-inch OLED display, 60 Hz, 320 ppi
SensorsPPG heart-rate sensor, accelerometerCompass, altimeter
Sleep trackingLight, REM and deep sleepSleep stages, sleep score

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationWHOOP 4.0 SensorGoogle Pixel Watch 3
DisplayScreenless tracker41 mm: 1.2-inch; 45 mm: 1.4-inch Actua LTPO AMOLED
Screen resolutionNot applicable41 mm: 408 × 408; 45 mm: 456 × 456 pixels; 320 ppi
Display protection—3D Corning Gorilla Glass 5
Display features—Always-on display; 1–60 Hz; DCI-P3 colour

Connectivity

Connectivity specifications comparison
SpecificationWHOOP 4.0 SensorGoogle Pixel Watch 3
Positioning / GNSSConnected smartphone GPS; no built-in GPSGPS; Galileo; GLONASS; BeiDou; QZSS
Network / cellular—LTE and UMTS on cellular editions
SIM / eSIM—LTE edition: eSIM
Wi-Fi—Wi-Fi 802.11a/b/g/n/ac/ax; 2.4 GHz + 5 GHz
Bluetooth—Bluetooth 5.3
NFC—Supported
Ultra Wideband (UWB)—Supported

Identity & design

Identity & design specifications comparison
SpecificationWHOOP 4.0 SensorGoogle Pixel Watch 3
BrandWHOOPGoogle
ModelWHOOP 4.0 SensorGoogle Pixel Watch 3
Build materialsScreenless sensor housingAluminum case
Strap / bandWHOOP 4.0 SuperKnitActive Band; fluoroelastomer
Announced—2024, August 13
Dimensions—41 mm or 45 mm diameter × 12.3 mm height
Weight—41 mm: 31 g; 45 mm: 37 g, without band
Wrist size—41 mm: small 130–175 mm, large 165–210 mm; 45 mm: small 150–185 mm, large 165–215 mm
Controls / buttons—Rotating haptic crown, side button, and touchscreen

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationWHOOP 4.0 SensorGoogle Pixel Watch 3
SensorsPPG heart-rate sensor; accelerometer; skin-temperature sensorCompass; altimeter; red and infrared SpO₂ sensors; electrical ECG sensors; multipath optical heart-rate sensor; accelerometer; gyroscope; ambient-light sensor; cEDA skin-conductance sensor; skin-temperature sensor; barometer; magnetometer
Health & wellness featuresContinuous heart rate; HRV; respiratory rate; skin temperature; Recovery; StrainContinuous heart rate; ECG; SpO₂; skin temperature; stress tracking; cEDA
Sleep trackingLight, REM and deep sleep; duration; performance; consistency; sleep needSleep stages; sleep score; overnight health metrics
Sports / workout modesAutomatic and manual activity trackingMore than 40 exercise modes with running insights
Training & outdoor features—Cardio load, target load, readiness, running form and GPS route tracking
Safety & emergency features—Emergency SOS; fall detection; safety check

Battery & durability

Battery & durability specifications comparison
SpecificationWHOOP 4.0 SensorGoogle Pixel Watch 3
Battery lifeApproximately 5 daysUp to 24 hours with always-on display; 36 hours Battery Saver
ChargingWHOOP 4.0 slide-on wireless Battery PackUSB-C magnetic pin charging
Water resistanceIP68; up to 10 m for 2 hours5 ATM; IP68
Battery capacity—41 mm: 307 mAh; 45 mm: 420 mAh
Durability / certifications—IP68-rated dust and water resistance

Compatibility

Compatibility specifications comparison
SpecificationWHOOP 4.0 SensorGoogle Pixel Watch 3
Phone compatibilityAndroid 10 or later; iOS 18 or later recommendedAndroid 10 or later; Google account
Companion appWHOOPGoogle Pixel Watch; Fitbit
Colors—41 mm: Obsidian, Porcelain, Hazel, Rose Quartz; 45 mm: Obsidian, Porcelain, Hazel

Additional specifications

Additional specifications specifications comparison
SpecificationWHOOP 4.0 SensorGoogle Pixel Watch 3
Charging timeApproximately 150 minutes41 mm: 24/35/60 minutes to 50/80/100%; 45 mm: 28/50/80 minutes
Movement sensorsAccelerometer—
Bluetooth and Wi-FiBluetooth; phone Bluetooth 4.2 or later—
Packing listWHOOP 4.0 sensor; compatible band; WHOOP 4.0 Battery PackWatch; small and large bands; charging dock or cable; quick start guide
Smart recognitionAutomatic activity detection—
Energy, load and readiness featuresRecovery; Strain; Sleep scores; personalized coaching—
strap materialSuperKnit—
Case material—100% recycled aluminum
Pixels per inch—320 ppi
Peak brightness—2,000 nits peak; 1 nit minimum
Third-party fitness apps—Google Play apps; Google Maps; Google Wallet; Google Assistant
Release status—Available. Released 2024, September 10
Card slot—No
Camera—No
3.5 mm headphone jack—No
USB—No
Radio—No
2G bands—GSM 850 / 900 / 1800 / 1900
3G bands—HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands—LTE
Network speed—HSPA, LTE

Performance & software

Performance & software specifications comparison
SpecificationWHOOP 4.0 SensorGoogle Pixel Watch 3
Processor—Qualcomm Snapdragon W5 Gen 1; Cortex-M33 coprocessor
RAM—2 GB SDRAM
Storage—32 GB eMMC
Operating system—Wear OS 5

Audio & communication

Audio & communication specifications comparison
SpecificationWHOOP 4.0 SensorGoogle Pixel Watch 3
Speaker—Supported
Microphone—Supported
Calling—Bluetooth or LTE calling depending on model and carrier

Similarities

  • Both are rated IP68.

In summary

Get the WHOOP 4.0 Sensor if you want a screenless tracker with longer battery life, or the Google Pixel Watch 3 if you would rather have ECG heart-rhythm readings.

Back to compared products ↑

In-stock alternatives

WHOOP ONE 5.0 SensorFor WHOOP 4.0 SensorWHOOP ONE 5.0 SensorView product ↗Huawei Watch GT 5 ProFor WHOOP 4.0 SensorHuawei Watch GT 5 ProView product ↗Samsung Galaxy Watch 8 ClassicFor Google Pixel Watch 3Samsung Galaxy Watch 8 ClassicView product ↗OnePlus Watch 4For Google Pixel Watch 3OnePlus Watch 4View product ↗

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