Samsung Galaxy Watch Ultra 2025 vs WHOOP 4.0 Sensor
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Apple Watch UltraKSh 90,000.00
Apple Watch Series 8 Price range: KSh 50,000.00 through KSh 53,000.00
Apple Watch Ultra 2KSh 103,500.00
Apple Watch Series 9 Price range: KSh 45,000.00 through KSh 49,500.00
At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Samsung Galaxy Watch Ultra 2025 |  WHOOP 4.0 Sensor |
|---|---|---|
| Price | KSh 43,500.00 | KSh 36,000.00 |
| Display | 1.5-inch Super AMOLED | — |
| Battery capacity | 590 mAh | — |
| Water resistance | 10 ATM | IP68; water-resistant up to 10 m for 2 hours; swimming and showering supported, not diving |
| Processor | Exynos W1000 (3 nm) | — |
| RAM | 2 GB | — |
| Storage | 64 GB | — |
| Operating system | Wear OS Powered by Samsung; One UI 8 Watch | — |
| Network / cellular | 3G UMTS and 4G LTE; availability varies by carrier and region | — |
| Positioning / GNSS | Built-in dual-frequency L1 + L5 GPS; GPS, GLONASS, BeiDou and Galileo | — |
| Health & wellness features | Heart-rate monitoring, ECG, blood pressure, body composition, blood oxygen, skin temperature, Energy Score, Antioxidant Index and Vascular Load; availability varies by market and paired phone | Continuous heart rate, HRV, respiratory rate, skin-temperature variation, strain and recovery tracking; not a medical device |
Full specifications
2 of 4 products
| Specification | Samsung Galaxy Watch Ultra 2025 | WHOOP 4.0 Sensor |
|---|---|---|
| Identity & design | ||
| Brand | Samsung | WHOOP |
| Model | Galaxy Watch Ultra (2025) | WHOOP 4.0 sensor |
| Announced | July 2025 | — |
| Dimensions | 47.4 × 47.1 × 12.1 mm | — |
| Weight | 60.5 g | — |
| Build materials | Grade 4 titanium case; sapphire-crystal display | Screen-free continuous-wear sensor housing |
| Controls / buttons | Touchscreen; Quick button; Home and Back buttons; Double Pinch gesture | — |
| Display | ||
| Display | 1.5-inch Super AMOLED | — |
| Screen resolution | 480 × 480 pixels | — |
| Display protection | Sapphire crystal | — |
| Display features | Full-colour Always-On Display; up to 3,000 nits | — |
| Performance & software | ||
| Processor | Exynos W1000 (3 nm) | — |
| CPU | 5-core CPU up to 1.6 GHz | — |
| RAM | 2 GB | — |
| Storage | 64 GB | — |
| Operating system | Wear OS Powered by Samsung; One UI 8 Watch | — |
| Connectivity | ||
| Network / cellular | 3G UMTS and 4G LTE; availability varies by carrier and region | — |
| SIM / eSIM | eSIM | — |
| Wi-Fi | 802.11a/b/g/n, 2.4 GHz and 5 GHz | — |
| Bluetooth | Bluetooth 5.3 | — |
| NFC | Supported | — |
| Positioning / GNSS | Built-in dual-frequency L1 + L5 GPS; GPS, GLONASS, BeiDou and Galileo | — |
| Audio & communication | ||
| Speaker | Speaker and siren | — |
| Microphone | Microphone | — |
| Calling | Standalone LTE calling and Bluetooth calling; carrier support required | — |
| Sensors, health & fitness | ||
| Sensors | Samsung BioActive Sensor (optical heart-rate, electrical heart and bioelectrical impedance analysis), infrared temperature sensor, accelerometer, barometer, gyroscope, geomagnetic sensor and light sensor | Photoplethysmography sensors and skin-temperature sensing |
| Health & wellness features | Heart-rate monitoring, ECG, blood pressure, body composition, blood oxygen, skin temperature, Energy Score, Antioxidant Index and Vascular Load; availability varies by market and paired phone | Continuous heart rate, HRV, respiratory rate, skin-temperature variation, strain and recovery tracking; not a medical device |
| Sleep tracking | Sleep tracking, Bedtime Guidance, sleep coaching and sleep-apnoea features where available | Automatic sleep detection, sleep duration, stages, sleep need and sleep performance |
| Sports / workout modes | Multiple workout modes including multisport and automatic workout detection | Automatic and manual activity tracking |
| Training & outdoor features | Dual-frequency GPS; GPX routes; Track Back; Running Coach; personalised heart-rate zones; Functional Threshold Power | — |
| Safety & emergency features | Fall detection, SOS and siren features when configured | — |
| Battery & durability | ||
| Battery capacity | 590 mAh | — |
| Battery life | Up to 80 hours with Always-On Display off; up to 60 hours with Always-On Display on; up to 100 hours in Power Saving Mode | Approximately 5 days |
| Charging | WPC-based wireless charging | WHOOP 4.0 slide-on wireless Battery Pack for on-wrist charging |
| Water resistance | 10 ATM | IP68; water-resistant up to 10 m for 2 hours; swimming and showering supported, not diving |
| Durability / certifications | IP68; MIL-STD-810H | — |
| Compatibility | ||
| Phone compatibility | Android 12 or later with more than 1.5 GB RAM and Google Mobile Services; compatibility varies by market and device | Compatible iPhone or Android phone; current support recommends iOS 18+ or Android 10+ |
| Companion app | Galaxy Wearable and Samsung Health | WHOOP app |
| Colors | Titanium Blue; Titanium Gray; Titanium White; Titanium Silver | — |
| Additional specifications | ||
| Charging time | — | Approximately 150 minutes for the sensor; around 2 hours for the Battery Pack |
| Movement sensors | — | Accelerometer |
| Bluetooth and Wi-Fi | — | Bluetooth 4.2 or higher |
| Packing list | — | WHOOP 4.0 sensor, compatible band and WHOOP 4.0 Battery Pack |
| Smart recognition | — | Automatically recognizes 45 activity types |
| Energy, load and readiness features | — | Recovery, Strain and Sleep scores with personalized coaching |
| strap material | — | SuperKnit performance band |
| armband | — | WHOOP 4.0 band; not compatible with WHOOP 5.0 or MG |
| heart rate broadcast | — | Real-time heart-rate broadcast supported |
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