Battery life
- Apple Watch SE 3
- Up to 18 hours per charge
- WHOOP Peak 5.0 Sensor
- Up to 14+ days
Wearable comparison
Compare battery life, health tracking, display and fit.
01Selected ![]() Apple Watch SE 3
KSh 37,500In Stock | 02 ![]() WHOOP Peak 5.0 Sensor
KSh 38,000In Stock |
|---|






The Apple Watch SE 3, a smartwatch, runs watchOS built around the iPhone and has built-in GPS for runs without your phone and faster recharging (45 minutes), while the WHOOP Peak 5.0 Sensor, a screenless tracker you read in the WHOOP app, lasts much longer between charges (14 days vs 18 hours) and works with Android phones and iPhones.
The main differences to help you choose.
| Priority | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Battery life | Up to 18 hours per charge | Up to 14+ days |
| Portability | 26.3 g | About 26.5 g |
| Display | OLED display | Screenless tracker |
| Software | watchOS 26 | WHOOP with Peak membership |
| Connections | Wi-Fi 4, Bluetooth 5.3 | Bluetooth |
| Water resistance | 50 m | IP68 water and dust resistance |
| Sensors | Second-generation optical heart sensor, temperature sensor | PPG heart-rate sensor, accelerometer |
| Sleep tracking | Sleep duration and sleep stages | Light, REM and deep sleep |
| Charging | Magnetic fast charging | Wireless PowerPack, compatible with USB-C Basic Charger |
| Health & wellness features | High and low heart-rate notifications | Continuous heart rate, HRV |
Tick a topic above to see how each product answers it.
Explore the full specifications, section by section.
| Specification | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Display | Always-On Retina LTPO OLED | Screenless tracker |
| Screen resolution | 40mm: 324 × 394 pixels; 44mm: 368 × 448 pixels | Not applicable |
| Display protection | Ion-X glass | — |
| Display features | 1000 nits (peak) | — |
| Specification | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Network / cellular | GSM / HSPA / LTE / 5G | — |
| SIM / eSIM | eSIM | — |
| Wi-Fi | Wi-Fi 802.11 b/g/n | — |
| Bluetooth | 5.3, A2DP, LE | — |
| NFC | Supported; Apple Pay | — |
| Positioning / GNSS | GPS, GLONASS, GALILEO, QZSS | Connected smartphone GPS; no built-in GPS |
| Specification | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Brand | Apple | WHOOP |
| Model | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
| Announced | 2025, September 09 | — |
| Dimensions | 40mm: 40 × 34 × 10.7 mm; 44mm: 44 × 38 × 10.7 mm | 34.7 × 24 × 10.6 mm |
| Weight | 40mm: GPS 26.3 g, GPS + Cellular 26.4 g; 44mm: GPS 32.9 g, GPS + Cellular 33.0 g | Approximately 26.5 g |
| Build materials | Aluminum case | Sensor housing with stainless-steel components; LED indicators |
| Wrist size | 40mm: 130–200 mm; 44mm: 140–245 mm | — |
| Controls / buttons | Digital Crown with haptic feedback; side button | — |
| Strap / band | — | SuperKnit Obsidian |
| Specification | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Processor | Apple S10; 4-core Neural Engine | — |
| CPU | 64-bit dual-core | — |
| GPU | PowerVR | — |
| Storage | 64 GB | — |
| Operating system | watchOS 26, upgradable to watchOS 27 | — |
| Specification | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Speaker | Supported | — |
| Microphone | Supported | — |
| Calling | Bluetooth calling; cellular calling on GPS + Cellular models | — |
| Specification | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Sensors | Second-generation optical heart sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high-dynamic-range gyroscope; ambient light sensor | PPG heart-rate sensor; accelerometer; skin-temperature sensor |
| Health & wellness features | High and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking; mindfulness and medications apps | Continuous heart rate; HRV; respiratory rate; skin temperature; Recovery; Strain; Healthspan; Health Monitor; Stress Monitor |
| Sleep tracking | Sleep duration and sleep stages | Light, REM and deep sleep; duration; performance; consistency; sleep need |
| Sports / workout modes | Workout app with multiple workout types and automatic workout detection | Automatic and manual activity tracking |
| Training & outdoor features | Pace and heart-rate zones; compass waypoints and backtrack | — |
| Safety & emergency features | Emergency SOS; international emergency calling; Fall Detection; Crash Detection | — |
| Specification | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Battery life | Up to 18 hours normal use; 32 hours Low Power Mode; 7 hours outdoor workout | Up to 14+ days |
| Charging | Magnetic fast charging | Wireless PowerPack; compatible with USB-C Basic Charger |
| Water resistance | 50 m; swimproof | IP68; up to 10 m for 2 hours |
| Specification | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Phone compatibility | iPhone 11 or later, including iPhone SE (2nd generation or later); iOS 26 or later | iOS 18 or later recommended; Android 11 or later recommended |
| Companion app | Apple Watch app on iPhone | WHOOP with Peak membership |
| Colors | Midnight, Starlight | — |
| Specification | Apple Watch SE 3 | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Pixels per inch | 326 ppi | — |
| Peak brightness | Up to 1,000 nits | — |
| Cover / touchscreen | Supported | — |
| Charging time | About 45 minutes to 80% | Approximately 120 minutes |
| Release status | Available. Released 2025, September 19 | — |
| Model numbers | A3325, A3324, A3328, A3326, A3327, A3329, A3391, A3392 | — |
| 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 - International, China, HK; HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, Canada | — |
| 4G bands | 1, 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, Canada | — |
| 5G bands | SA/NSA | — |
| Network speed | HSPA, LTE, 5G | — |
| SAR (US) | 1.18 W/kg (head) | — |
| SAR (EU) | 0.42 W/kg (head) | — |
| Additional hardware features | Media playback | — |
| Battery type | Rechargeable lithium-ion | — |
| Movement sensors | — | Accelerometer |
| Bluetooth and Wi-Fi | — | Bluetooth |
| Packing list | — | WHOOP 5.0; SuperKnit Obsidian band; Wireless PowerPack |
| Smart recognition | — | Automatic activity detection |
| Energy, load and readiness features | — | Recovery; Strain; Sleep scores; personalized coaching |
These products have the same published specifications.
Get the WHOOP Peak 5.0 Sensor if you want a screenless tracker with much longer battery life, or the Apple Watch SE 3 if you would rather have the time, notifications and workout stats on your wrist.
Back to compared products ↑Keep a link to this cart, or ask us to send it to you. Reminders are optional.
You may send me reminders about this cart on the channels I select. I can opt out at any time.
Only the details you provide here or in checkout are used. Reminders are optional. Privacy notice