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Watch comparison

Apple SE 2 vs Apple Series 12 46mm

Compare battery life, health tracking, display and fit.

Compared products
01Selected
Apple Watch SE 2

Apple Watch SE 2

  • Screen: 40mm: 324 × 394 pixels; 44mm: 368 × 448 pixels.
  • Apple S8; 2-core Neural Engine processor.
  • 1 GB RAM in this version.
  • 32 GB storage in this version.
  • Runs watchOS 9.0, upgradable to watchOS 26.6.
KSh 28,500In Stock
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02
Apple Watch Series 12 46mm

Apple Watch Series 12 46mm

  • Apple S11 chip; 4-core Neural Engine processor.
  • 64 GB storage in this version.
  • Runs watchOS 27.
  • Wi-Fi 4 support.
  • Touchscreen for direct touch input.
KSh 67,000In Stock
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Add to comparison

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Amazfit Active MaxKSh 24,000
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Amazfit GTR 3 ProKSh 20,000
Apple Watch Series 8KSh 50,000
2 of 4 products

Our quick verdict

The Apple Watch Series 12 46mm lasts longer per charge (24 hours), takes ECG heart-rhythm readings and gives daily readiness scores, while the Apple Watch SE 2 is lighter to wear all day.

Performance

Apple Watch SE 2
Apple S8; 2-core Neural Engine processor
Apple Watch Series 12 46mm
Apple S11 chip; 4-core Neural Engine processor

Storage

Apple Watch SE 2
32 GB storage in this version
Apple Watch Series 12 46mm
64 GB storage in this version

Software

Apple Watch SE 2
Runs watchOS 9.0, upgradable to watchOS 26.6
Apple Watch Series 12 46mm
Runs watchOS 27

Battery life

Apple Watch SE 2
Up to 18 hours per charge
Apple Watch Series 12 46mm
Up to 24 hours per charge

Portability

Apple Watch SE 2
26.4 g
Apple Watch Series 12 46mm
39.5 g

Key differences

The main differences to help you choose.

Apple Watch SE 2

  • Lighter: 26.4 g (vs 39.5 g).

Apple Watch Series 12 46mm

  • Rated for up to 24 hours per charge (vs 18).
  • Brighter display: up to 2,000 nits (vs 1,000).
  • ECG heart-rhythm readings.
  • Daily readiness scores.
  • More storage: 64 GB (vs 32 GB).
  • Recharges faster: 30 minutes (vs 1.5 hours).

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
PriorityApple Watch SE 2Apple Watch Series 12 46mm
Battery lifeUp to 18 hours per chargeUp to 24 hours per charge
Storage32 GB storage64 GB storage
DisplayOLED displayOLED display, 326 ppi
PerformanceApple S8 processorApple S11 chip processor
SoftwarewatchOS 9.0watchOS 27
Water resistance50 m50 m swimproof under ISO 22810:2010

Detailed comparison

Explore the full specifications, section by section.

Display

Display specifications comparison
SpecificationApple Watch SE 2Apple Watch Series 12 46mm
DisplayRetina LTPO OLEDAlways-On Retina LTPO3 wide-angle OLED
Screen resolution40mm: 324 × 394 pixels; 44mm: 368 × 448 pixels42mm: 374 × 446 pixels, 970 mm² display area. 46mm: 416 × 496 pixels, 1196 mm² display area. Both: 326 ppi.
Display protectionIon-X glassCeramic Shield 2 on aluminum cases; sapphire front crystal on titanium and ceramic cases
Display features1000 nits (peak)1 Hz refresh; up to 2,000 nits peak brightness; 1 nit minimum brightness

Connectivity

Connectivity specifications comparison
SpecificationApple Watch SE 2Apple Watch Series 12 46mm
Network / cellularGSM / HSPA / LTE5G RedCap and LTE on GPS + Cellular models; international roaming supported
SIM / eSIMeSIMeSIM on GPS + Cellular models
Wi-FiWi-Fi 802.11 b/g/nWi‑Fi 4 (802.11n), 2.4 GHz and 5 GHz
Bluetooth5.3, A2DP, LEBluetooth 5.3
NFCSupported; Apple PaySupported; Apple Pay
Positioning / GNSSGPS, GLONASS, GALILEO, QZSSPrecision L1 GPS; GLONASS; Galileo; QZSS; BeiDou
Ultra Wideband (UWB)—Second-generation Ultra Wideband chip

Identity & design

Identity & design specifications comparison
SpecificationApple Watch SE 2Apple Watch Series 12 46mm
BrandAppleApple
ModelApple Watch SE 2Apple Watch Series 12 (42mm and 46mm configurations)
Announced2022, September 079 September 2026
Dimensions40mm: 40 × 34 × 10.7 mm; 44mm: 44 × 38 × 10.7 mm42mm: aluminum/titanium 42 × 37 × 9.7 mm; ceramic 43 × 37 × 9.85 mm. 46mm: aluminum/titanium 46 × 40 × 9.7 mm; ceramic 47 × 41 × 9.85 mm.
Weight40mm: GPS 26.4 g, GPS + Cellular 27.8 g; 44mm: GPS 32.9 g, GPS + Cellular 33.0 g42mm: aluminum GPS 32.2 g, GPS + Cellular 31.5 g, titanium 36.5 g, ceramic Pearl White 41.7 g / Night Blue 42.8 g. 46mm: aluminum GPS 39.5 g, GPS + Cellular 38.6 g, titanium 44.9 g, ceramic Pearl White 51.3 g / Night Blue 52.9 g.
Build materialsAluminum caseAluminum, titanium or ceramic case, depending on configuration
Wrist size40mm: 130–200 mm; 44mm: 140–245 mm42mm: 130–200 mm; 46mm: 140–245 mm
Controls / buttonsDigital Crown with haptic feedback; side buttonDigital Crown with haptic feedback; side button; band-release button; single tap, double tap and wrist flick gestures
Strap / band—Band supplied; material and size depend on the selected configuration

Performance & software

Performance & software specifications comparison
SpecificationApple Watch SE 2Apple Watch Series 12 46mm
ProcessorApple S8; 2-core Neural EngineApple S11 chip; 4-core Neural Engine
CPU64-bit dual-core64-bit dual-core
GPUPowerVR—
RAM1GB—
Storage32 GB64 GB
Operating systemwatchOS 9.0, upgradable to watchOS 26.6watchOS 27

Audio & communication

Audio & communication specifications comparison
SpecificationApple Watch SE 2Apple Watch Series 12 46mm
SpeakerSupportedSpeaker with media playback
MicrophoneSupportedMicrophone with Voice Isolation
CallingBluetooth calling; cellular calling on GPS + Cellular modelsBluetooth calling; cellular calling on GPS + Cellular models; international emergency calling

Sensors, health & fitness

Sensors, health & fitness specifications comparison
SpecificationApple Watch SE 2Apple Watch Series 12 46mm
SensorsSecond-generation optical heart sensor; compass; always-on altimeter; high-g accelerometer; high-dynamic-range gyroscope; ambient light sensorHigh-g accelerometer; high dynamic-range gyroscope; compass; always-on altimeter; ambient-light sensor; second-generation electrical heart sensor; always-on optical heart sensor; blood-oxygen sensor; temperature sensor; depth gauge; water-temperature sensor
Health & wellness featuresHeart Rate app; high and low heart-rate notifications; irregular rhythm notifications; Medications, Mindfulness and Noise appsHeart rate and HRV; Blood Oxygen; ECG; respiratory rate; wrist temperature; Readiness and Vitals; high/low heart-rate and irregular-rhythm notifications; cycle tracking; hypertension notifications
Sleep trackingSleep duration and sleep stagesSleep duration and stages; sleep score; sleep-apnea notifications
Sports / workout modesWorkout app with multiple workout types and automatic workout detectionRunning; hiking; cycling; pool and open-water swimming; skiing; snowboarding; rowing; paddling; golf; walking; HIIT; yoga; strength; dance; Pilates; Tai Chi; kickboxing; multisport and more
Training & outdoor featuresPace metrics; compass and BacktrackCustom workouts and views; Training Load; heart-rate zones; VO₂ max; Race Route; Pacer; running dynamics; automatic track detection; offline maps, routes, waypoints and Backtrack
Safety & emergency featuresEmergency SOS; international emergency calling; Fall Detection; Crash DetectionEmergency SOS; international emergency calling; Fall Detection; Crash Detection; flashlight; Check In; noise monitoring; emergency waypoints
Diving / depth features—Depth gauge to 6 m; water-temperature sensor

Battery & durability

Battery & durability specifications comparison
SpecificationApple Watch SE 2Apple Watch Series 12 46mm
Battery lifeUp to 18 hours normal useUp to 24 hours normal use; up to 38 hours Low Power Mode; up to 10 hours outdoor workout
ChargingMagnetic charging to USB-C cableFast-charge capable; up to 80% in about 30 minutes; 15 minutes for up to 12 hours normal use; 5 minutes for up to 10 hours sleep tracking
Water resistance50 m; swimproof50 m swimproof under ISO 22810:2010
Durability / certifications—IP6X dust resistance

Compatibility

Compatibility specifications comparison
SpecificationApple Watch SE 2Apple Watch Series 12 46mm
Phone compatibilityiPhone XS or later, including iPhone SE (2nd generation or later); iOS 18 or lateriPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later
Companion appApple Watch app on iPhoneApple Watch app on iPhone; Health and Fitness apps for associated data
ColorsMidnight, Starlight, SilverAluminum: Dark Bronze, Light Gold, Black, Space Gray; titanium: Radiant Gold, Natural; ceramic: Pearl White, Night Blue

Additional specifications

Additional specifications specifications comparison
SpecificationApple Watch SE 2Apple Watch Series 12 46mm
Pixels per inch326 ppi326 ppi
Peak brightnessUp to 1,000 nitsUp to 2,000 nits peak; 1 nit minimum
Cover / touchscreenSupportedSupported
Charging timeAbout 1.5 hours to 80%About 30 minutes to 80%; 15 minutes for up to 12 hours normal use; 5 minutes for up to 10 hours sleep tracking
Release statusAvailable. Released 2022, September 16Available. Released 2026, September 18
Model numbersA2722, A2723, A2724, A2727, A2856, A2725, A2726, A2855, watch6,10, watch6,11, watch6,12, watch6,13A3582, A3587
Card slotNoNo
CameraNoNo
3.5 mm headphone jackNoNo
USBNoNo
RadioNoNo
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK; HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, CanadaHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK; 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71
Network speedHSPA, LTEHSPA, LTE, 5G
SAR (US)0.27 W/kg (head) 1.96 W/kg (body)—
SAR (EU)0.27 W/kg (head) 1.96 W/kg (body)—
Battery typeRechargeable lithium-ion—
Flashlight—Supported
Display material—LTPO3 wide-angle OLED
Packing list—Apple Watch Series 12; band; 1 m magnetic fast-charger to USB-C cable
5G bands—1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 38, 40, 41, 66, 71 SA/NSA
Additional hardware features—Health Sensing System: third‑generation electrical heart sensor, always‑on optical heart sensor, blood oxygen sensor, temperature sensor; Temperature sensing (0.01˚ accuracy); Media playback

Similarities

  • Both belong to the Apple Watch platform.
  • Both support Wi-Fi 4.
  • Both use Bluetooth 5.3.
  • Both work with a companion app.
  • Both have NFC.
  • Both take calls over Bluetooth.

In summary

For most buyers the Apple Watch Series 12 46mm is the better buy; the Apple Watch SE 2 makes sense if you want a lighter watch for all-day wear.

Back to compared products ↑

In-stock alternatives

OnePlus Watch 2For Apple Watch SE 2OnePlus Watch 2View product ↗OnePlus Watch 2RFor Apple Watch SE 2OnePlus Watch 2RView product ↗Google Pixel Watch 5 45mmFor Apple Watch Series 12 46mmGoogle Pixel Watch 5 45mmView product ↗Apple Watch Series 12 42mmFor Apple Watch Series 12 46mmApple Watch Series 12 42mmView product ↗

Related comparisons

Apple Watch SE 2Amazfit Active MaxApple Watch SE 2OnePlus Watch 2Apple Watch SE 2Fitbit Sense 2Apple Watch SE 2Fitbit EdgeApple Watch SE 2Xiaomi Watch S1

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