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Wearable comparison

WHOOP 4.0 vs OnePlus Watch 4

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
02
OnePlus Watch 4

OnePlus Watch 4

  • Screen: 466 × 466 pixels; 310 ppi.
  • Qualcomm Snapdragon W5; BES2800 MCU processor.
  • 2 GB RAM in this version.
  • 32 GB storage in this version.
  • Runs OxygenOS Watch 8; Wear OS 6.0.
KSh 38,500In 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, works with Android phones and iPhones and gives daily recovery and strain scores, while the OnePlus Watch 4, a smartwatch with a 1.5-inch OLED screen, has built-in GPS for runs without your phone, is swimproof to 50 m and has faster recharging (1.25 hours).

Battery life

WHOOP 4.0 Sensor
Approximately 5 days
OnePlus Watch 4
646 mAh battery

Display

WHOOP 4.0 Sensor
Screenless tracker
OnePlus Watch 4
1.5-inch OLED display, 310 ppi

Software

WHOOP 4.0 Sensor
WHOOP
OnePlus Watch 4
OxygenOS Watch 8

Connections

WHOOP 4.0 Sensor
Bluetooth 4.2
OnePlus Watch 4
Bluetooth 5.2

Water resistance

WHOOP 4.0 Sensor
IP68 water and dust resistance
OnePlus Watch 4
IP69 water and dust resistance

Key differences

The main differences to help you choose.

WHOOP 4.0 Sensor

  • Works with Android phones and iPhones.
  • Screenless: worn day and night, with results read in the WHOOP app.
  • Daily recovery and strain scores.
  • Lower price: KSh 36,000 (vs KSh 38,500).

OnePlus Watch 4

  • Screen on the wrist for the time, notifications and workout stats.
  • Built-in GPS (the other uses the phone's GPS).
  • Swimproof: water resistant to 50 m (vs 10 m).
  • Recharges faster: 1.25 hours (vs 2.5 hours).
  • Takes calls from the wrist over Bluetooth.
  • Newer Bluetooth 5.2 (vs 4.2).

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.

More topicsFewer topics
6 priorities selected.
How each product answers the selected priorities
PriorityWHOOP 4.0 SensorOnePlus Watch 4
Battery lifeApproximately 5 days646 mAh battery
DisplayScreenless tracker1.5-inch OLED display, 310 ppi
SoftwareWHOOPOxygenOS Watch 8
ConnectionsBluetooth 4.2Bluetooth 5.2
Water resistanceIP68 water and dust resistanceIP69 water and dust resistance
SensorsPPG heart-rate sensor, accelerometerAccelerometer, gyroscope

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationWHOOP 4.0 SensorOnePlus Watch 4
DisplayScreenless tracker1.5-inch LTPO OLED
Screen resolutionNot applicable466 × 466 pixels; 310 ppi
Display protection—Sapphire crystal
Display features—600 nits (typ), 1600 nits (HBM), 3000 nits (peak)

Connectivity

Connectivity specifications comparison
SpecificationWHOOP 4.0 SensorOnePlus Watch 4
Positioning / GNSSConnected smartphone GPS; no built-in GPSDual-frequency L1 + L5; GPS; BeiDou; Galileo; GLONASS; QZSS
Network / cellular—No cellular connectivity
SIM / eSIM—Unsupported
Wi-Fi—Wi-Fi 2.4 GHz + 5 GHz
Bluetooth—Bluetooth 5.2
NFC—Supported

Identity & design

Identity & design specifications comparison
SpecificationWHOOP 4.0 SensorOnePlus Watch 4
BrandWHOOPOnePlus
ModelWHOOP 4.0 SensorOnePlus Watch 4
Build materialsScreenless sensor housingTitanium-alloy case; PA and fibreglass back
Strap / bandWHOOP 4.0 SuperKnitFluororubber
Announced—2026, April 22
Dimensions—47.4 × 47.4 × 11.0 mm
Weight—Approximately 43 g without strap; 68 g with strap
Wrist size—140–210 mm

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationWHOOP 4.0 SensorOnePlus Watch 4
SensorsPPG heart-rate sensor; accelerometer; skin-temperature sensorAccelerometer; gyroscope; optical heart-rate sensor; optical blood-oxygen sensor; geomagnetic sensor; ambient-light sensor; barometer; wrist-temperature sensor
Health & wellness featuresContinuous heart rate; HRV; respiratory rate; skin temperature; Recovery; StrainHeart rate; high and low heart-rate alerts; SpO₂ spot checks and all-day monitoring; stress; breathing exercises; cycle tracking; 60-second Wellness Overview
Sleep trackingLight, REM and deep sleep; duration; performance; consistency; sleep needDeep, light and REM sleep; awake time; sleep score; breathing rate; SpO₂; snoring-risk assessment
Sports / workout modesAutomatic and manual activity tracking100+ sports modes
Training & outdoor features—Aerobic training effect; cardiorespiratory capacity; recovery time; heart-rate recovery; running form; track running
Safety & emergency features—Fall detection; emergency rescue

Battery & durability

Battery & durability specifications comparison
SpecificationWHOOP 4.0 SensorOnePlus Watch 4
Battery lifeApproximately 5 daysUp to 5 days smart mode; 3 days heavy use; 16 days power saver
ChargingWHOOP 4.0 slide-on wireless Battery PackCharging base with USB-C cable
Water resistanceIP68; up to 10 m for 2 hours5 ATM; IP69; IP68
Battery capacity—646 mAh typical; 632 mAh rated
Durability / certifications—MIL-STD-810H

Compatibility

Compatibility specifications comparison
SpecificationWHOOP 4.0 SensorOnePlus Watch 4
Phone compatibilityAndroid 10 or later; iOS 18 or later recommendedAndroid 9.0 or later; GMS 23.45.23 or later
Companion appWHOOPOHealth
Colors—Midnight Titanium; Evergreen Titanium

Additional specifications

Additional specifications specifications comparison
SpecificationWHOOP 4.0 SensorOnePlus Watch 4
Charging timeApproximately 150 minutesApproximately 75 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; charging base; strap; USB-C cable; user guide; safety and warranty booklet
Smart recognitionAutomatic activity detectionRunning; walking; cycling; swimming; rowing machine; elliptical
Energy, load and readiness featuresRecovery; Strain; Sleep scores; personalized coaching—
strap materialSuperKnit—
Case material—Titanium alloy
Pixels per inch—310 ppi
Peak brightness—600 nits typical; 1,500 nits high-brightness mode; 3,000 nits peak in supported sports modes
Release status—Available. Released 2026, April
Card slot—No
Camera—No
3.5 mm headphone jack—No
USB—No
Radio—No
Maximum charging power—Approximately 7.5 W
Operating temperature—0–35 °C

Performance & software

Performance & software specifications comparison
SpecificationWHOOP 4.0 SensorOnePlus Watch 4
Processor—Qualcomm Snapdragon W5; BES2800 MCU
RAM—2 GB
Storage—32 GB
Operating system—OxygenOS Watch 8; Wear OS 6.0

Audio & communication

Audio & communication specifications comparison
SpecificationWHOOP 4.0 SensorOnePlus Watch 4
Speaker—Supported
Microphone—Supported
Calling—Bluetooth calling with a connected smartphone

Similarities

  • Both are water resistant (IP68 and IP69).
  • Both are rated for up to 5 days.

In summary

Get the WHOOP 4.0 Sensor if you want a screenless tracker with a choice of Android phone or iPhone, or the OnePlus Watch 4 if you would rather have the time, notifications and workout stats on your wrist.

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