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Wearable comparison

Xiaomi Watch S5 vs OPPO Watch S

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Xiaomi Watch S5

Xiaomi Watch S5

  • Screen: 480 × 480 pixels, 459 ppi.
  • Runs Xiaomi HyperOS 3.
  • 815 mAh battery capacity.
  • Bluetooth 5.4.
  • 5 ATM.
KSh 25,000Out of Stock
02
OPPO Watch S

OPPO Watch S

  • Screen: 464 × 464 pixels; 317 ppi.
  • BES2800BP MCU processor.
  • 4 GB storage in this version.
  • Runs ColorOS Watch 7.1.
  • 339 mAh battery.
KSh 25,000In Stock
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2 of 4 products

Our quick verdict

The OPPO Watch S takes ECG heart-rhythm readings, is lighter to wear all day and has a brighter screen for outdoor use, while the Xiaomi Watch S5 lasts longer between charges (up to 21 days) and has a sharper screen.

Display

Xiaomi Watch S5
480 × 480 pixels, 459 ppi
OPPO Watch S
464 × 464 pixels; 317 ppi

Software

Xiaomi Watch S5
Runs Xiaomi HyperOS 3
OPPO Watch S
Runs ColorOS Watch 7.1

Battery life

Xiaomi Watch S5
815 mAh battery
OPPO Watch S
339 mAh battery

Portability

Xiaomi Watch S5
About 46 g
OPPO Watch S
35 g

Connections

Xiaomi Watch S5
Bluetooth 5.4
OPPO Watch S
Bluetooth 5.2

Key differences

The main differences to help you choose.

Xiaomi Watch S5

  • Longer rated battery life: up to 21 days (vs 10 days).
  • Bigger battery: 815 mAh (vs 339 mAh).
  • Sharper screen: 459 ppi (vs 317 ppi).
  • Newer Bluetooth 5.4 (vs 5.2).

OPPO Watch S

  • Brighter display: up to 3,000 nits (vs 2,500).
  • Lighter: 35 g (vs about 46 g).
  • ECG heart-rhythm readings.
  • Slimmer: 8.9 mm thick (vs 10.99 mm).

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.

6 priorities selected.
How each product answers the selected priorities
PriorityXiaomi Watch S5OPPO Watch S
Battery life815 mAh battery339 mAh battery
PortabilityAbout 46 g35 g
Display1.48-inch OLED display, 459 ppi1.46-inch OLED display, 317 ppi
SoftwareXiaomi HyperOS 3ColorOS Watch 7.1
ConnectionsBluetooth 5.4Bluetooth 5.2
Water resistance5 ATMIP68 water and dust resistance

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationXiaomi Watch S5OPPO Watch S
Display1.48-inch AMOLED1.46-inch AMOLED
Screen resolution480 × 480 pixels, 459 ppi464 × 464 pixels; 317 ppi
Display protectionDrop-resistant glassGlass
Display features1,500 nits HBM brightness; up to 2,500 nits peak brightness; wet-touch protection; ultra-narrow 2.6 mm bezel3000 nits (peak)

Connectivity

Connectivity specifications comparison
SpecificationXiaomi Watch S5OPPO Watch S
Network / cellularNo cellular connectivityNo cellular connectivity
Wi-FiNot supportedUnsupported
BluetoothDual-mode Bluetooth BLE/BT 5.4Bluetooth 5.2; Classic Bluetooth and BLE
NFCSupported; payments availability varies by regionNon-encrypted access cards
Positioning / GNSSBuilt-in dual-band five-system GNSS: GPS, Galileo, GLONASS, BeiDou and QZSSDual-band L1 + L5; GPS; BeiDou; Galileo; GLONASS; QZSS
SIM / eSIM—No

Identity & design

Identity & design specifications comparison
SpecificationXiaomi Watch S5OPPO Watch S
BrandXiaomiOPPO
ModelXiaomi Watch S5 46mmOPPO Watch S
Announced28 May 20262025, October 16
Dimensions46.00 × 46.00 × 10.99 mm, excluding strap and protrusions44.98 × 44.98 × 8.9 mm, excluding lugs and optical sensor
WeightApproximately 46 g without in-box strap35 g without strap; 59 g with fluororubber strap; 48 g with woven strap
Build materials316L stainless-steel watch body; stainless-steel, ceramic or forged-carbon bezel; glass coverStainless-steel frame; PA with 55% fibreglass back
Wrist sizeBlack/Silver: approximately 140–210 mm; Ceramic Blue/Jungle Green: approximately 135–205 mm140–210 mm
Strap / bandBlack/Silver: fluororubber; Ceramic Blue: genuine leather; Jungle Green: fluororubber plus nylon braided strapBlack fluororubber or tri-colour woven strap; stainless-steel buckle
Controls / buttonsStainless-steel rotating crown; upper and lower buttons; touchscreen—

Performance & software

Performance & software specifications comparison
SpecificationXiaomi Watch S5OPPO Watch S
Operating systemXiaomi HyperOS 3ColorOS Watch 7.1
Processor—BES2800BP MCU
Storage—4 GB eMMC

Audio & communication

Audio & communication specifications comparison
SpecificationXiaomi Watch S5OPPO Watch S
SpeakerSupportedSupported
MicrophoneSupportedSupported
Calling—Bluetooth calling

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationXiaomi Watch S5OPPO Watch S
SensorsHeart-rate sensor with blood-oxygen sensor; accelerometer; gyroscope; ambient-light sensor; electronic compass; barometerAccelerometer; gyroscope; geomagnetic sensor; barometer; optical heart-rate sensor; optical SpO₂ sensor; ECG sensor; wrist-temperature sensor; ambient-light sensor
Health & wellness featuresHeart-rate, blood-oxygen and stress monitoring; one-tap health check60-second Wellness Overview; heart rate and alerts; SpO₂ and alerts; Mind and Body; cycle tracking; wrist temperature; breathing exercises
Sleep trackingEnhanced sleep monitoringDeep, light and REM sleep; awake time; respiratory rate; sleep SpO₂; sleep score
Sports / workout modes150+ sports modes100+ sports modes
Training & outdoor featuresAdvanced outdoor-sports tracking; upgraded cycling mode; dual-band GNSS; Bluetooth power-meter connectivityRunning coach; aerobic training effect; cardiorespiratory capacity; recovery time; heart-rate recovery; track running
Safety & emergency features—Fall detection

Battery & durability

Battery & durability specifications comparison
SpecificationXiaomi Watch S5OPPO Watch S
Battery capacity815 mAh lithium-ion polymer battery339 mAh typical; 330 mAh rated
Battery lifeLight use: up to 21 days; normal use: up to 14 days; AOD normal use: up to 9 daysUp to 10 days maximum; 7 days typical; 4 days AOD
Charging2-pin magnetic charging dockIntegrated watch charging cable
Water resistance5 ATM5 ATM; IP68

Compatibility

Compatibility specifications comparison
SpecificationXiaomi Watch S5OPPO Watch S
Phone compatibilityAndroid 8.0 or later; iOS 14.0 or laterAndroid 9 or later; iOS 14 or later
Companion appMi Fitness—
ColorsBlack; Silver; Ceramic Blue; Jungle GreenPhantom Black; Silver Gleam

Additional specifications

Additional specifications specifications comparison
SpecificationXiaomi Watch S5OPPO Watch S
Case material—Stainless steel
Pixels per inch—317 ppi
Peak brightness—600 nits default maximum; 1,500 nits HBM; 3,000 nits peak in supported workout modes
Packing list—Watch with strap; integrated charging cable; user guide; safety and warranty booklet
Smart recognition—Running; brisk walking; cycling; swimming; rowing machine; elliptical
Release status—Available. Released 2025, October 22
Card slot—No
Camera—No
3.5 mm headphone jack—No
USB—No
Radio—No
Network speed—No

Similarities

  • Both have a stainless steel case.
  • Both are water resistant to 50 m.
  • Both have OLED displays.
  • Both have similar screen sizes (1.48 and 1.46 inches).
  • Both connect over Bluetooth.

In summary

Get the OPPO Watch S if you want ECG heart-rhythm readings and a lighter watch for all-day wear, or the Xiaomi Watch S5 if you would rather have longer battery life and a sharper screen.

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In-stock alternatives

OnePlus Watch LiteFor Xiaomi Watch S5OnePlus Watch LiteView product ↗Amazfit Active 3 PremiumFor Xiaomi Watch S5Amazfit Active 3 PremiumView product ↗Amazfit Active MaxFor OPPO Watch SAmazfit Active MaxView product ↗OnePlus Watch 2RFor OPPO Watch SOnePlus Watch 2RView product ↗

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