Apple Watch vs Samsung Galaxy Watch
The iPhone flagship against the best Wear OS watch. Your phone decides most of this — but battery, health sensors and ecosystem set the two apart. Here's how they really compare.
The first thing to know about Apple Watch versus Samsung Galaxy Watch is that your phone makes most of the decision for you. The Apple Watch Series 10 works only with an iPhone; the Samsung Galaxy Watch 7 runs Wear OS and pairs with Android phones (with its deepest health features favouring a Samsung Galaxy phone). So for most people this isn’t a close call — it’s a question of which phone is in your pocket.
Where it gets interesting is what each watch does once it’s paired. Both are full-featured smartwatches with built-in GPS and an ECG app, but they differ on battery, on a few standout health sensors, and on their app ecosystems. If you’re genuinely platform-flexible, those differences are the tiebreakers. Both options below show a live price.
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| Feature | Apple Watch Series 10 | Samsung Galaxy Watch 7 |
|---|---|---|
| Platform | watchOS (iPhone only) | Wear OS 5 (Android; best with Galaxy) |
| Battery | Up to 18 hrs (~36 low power) | About a day |
| GPS | Built-in GPS | Built-in dual-frequency GPS |
| ECG | FDA-cleared ECG app (US) | ECG (US) — needs a Galaxy phone |
| Standout health | Sleep-apnea alerts, skin temp | BIA body composition, skin temp |
| Blood oxygen | SpO2 (re-enabled on US models) | SpO2 |
| Water resistance | 50m swimproof (WR50) | 5 ATM + IP68 |
| Best for | iPhone owners | Android / Samsung owners |
Apple Watch Series 10
Apple Watch Series 10
Buy this if: iPhone owners who want the most complete health and safety smartwatch, with the smoothest app ecosystem.
Strengths
- FDA-cleared ECG plus FDA-cleared sleep-apnea notifications
- Large always-on OLED with fast charging
- Full watchOS ecosystem, Crash and Fall Detection
Trade-offs
- About 18-hour battery life
- Requires an iPhone — no Android support at all
Price as of August 7, 2026. #ad How we’re funded
Samsung Galaxy Watch 7
Samsung Galaxy Watch 7
Buy this if: Android and Samsung phone owners who want a polished Wear OS watch with extra body-composition data.
Strengths
- Dual-frequency built-in GPS
- ECG, SpO2, skin temperature and BIA body composition
- Smooth Wear OS 5 with a large app library
Trade-offs
- Roughly one-day battery life
- ECG requires a paired Samsung Galaxy phone (no US blood pressure)
Price as of August 7, 2026. #ad How we’re funded
Platform first: match the watch to your phone
There’s no way around this one. The Apple Watch simply doesn’t pair with Android, and while the Galaxy Watch technically works with any Android phone, its ECG and a few features are built around Samsung’s ecosystem and work best (or only) with a Galaxy phone. If you’re committed to an iPhone, the Apple Watch is the answer; if you’re on Android, the Galaxy Watch is the natural pick and a Samsung phone unlocks its full feature set. Everything below only matters if you’re genuinely open to switching platforms.
Battery and daily wear
Both are roughly one-day watches, which is the trade-off you accept for bright, always-on screens and full app support. The Apple Watch is rated at up to 18 hours (up to ~36 in low-power mode) and charges very fast, which makes a top-up before bed easy. The Galaxy Watch is similar — about a day — so if all-day and multi-day battery matters more than apps, honestly neither is ideal, and a Garmin or a simpler band would serve you better. Between these two, it’s close to a wash.
Health sensors: where they diverge
This is the most interesting split. Both offer an FDA-cleared ECG app and SpO2. The Apple Watch adds FDA-cleared sleep-apnea notifications, which is a genuinely notable health feature. The Galaxy Watch counters with bioelectrical impedance analysis (BIA) for body-composition estimates — body fat, muscle mass, body water — taken from the watch, which Apple doesn’t offer. Both track skin temperature. Which set is more valuable depends on you: sleep-apnea screening leans Apple, body-composition tracking leans Samsung. As always, these are wellness and screening tools, not diagnostic devices.
Ecosystem, GPS and safety
The Apple Watch has the smoother, deeper app ecosystem and mature safety features (Crash and Fall Detection). The Galaxy Watch runs Wear OS 5 with a large and growing app library and edges ahead on raw GPS hardware with a dual-frequency receiver, which can improve tracking accuracy in cities and under tree cover. Both are strong here; Apple wins on ecosystem polish, Samsung on GPS spec.
Which should you buy?
Buy for your phone first — iPhone owners get the Apple Watch Series 10, Android and Samsung owners get the Galaxy Watch 7 — and let the health-sensor differences be the tiebreaker only if you’re truly platform-agnostic. If your priority is battery life and training depth over apps, look beyond both to a sport watch: our Apple Watch vs Garmin comparison and best fitness smartwatches roundup cover that ground.
Wellness guidance, not medical advice. Pulse & Plate is written by a fitness enthusiast, not a doctor. Wearable heart-rate, SpO2, ECG and sleep readings are for general wellness, not diagnosis. For a heart concern, a symptom, or before starting a new exercise program, talk to a qualified professional.
Frequently asked questions
Is the Apple Watch or Samsung Galaxy Watch better?
Neither is universally better — your phone decides most of it. The Apple Watch Series 10 works only with an iPhone and offers FDA-cleared ECG and sleep-apnea alerts with a superb app ecosystem. The Galaxy Watch 7 runs Wear OS for Android, adds dual-band GPS and BIA body composition, and works best with a Samsung phone. Match the watch to your phone first.
Can an Apple Watch work with an Android phone?
No. The Apple Watch requires an iPhone and does not pair with Android phones at all. If you use an Android phone, the Samsung Galaxy Watch (or another Wear OS watch) is the appropriate choice; the Galaxy Watch's deepest features, including ECG, work best with a Samsung Galaxy phone.
Which has better battery life, Apple Watch or Galaxy Watch?
They are close — both are roughly one-day watches. The Apple Watch Series 10 is rated up to 18 hours (more in low-power mode) and charges quickly; the Galaxy Watch 7 lasts about a day. If long multi-day battery is your priority, neither is ideal, and a Garmin or a simpler fitness band would serve you better.
Do both watches have ECG?
Yes, both offer an FDA-cleared ECG app in the US, along with SpO2. The Apple Watch also adds FDA-cleared sleep-apnea notifications, while the Galaxy Watch adds BIA body-composition readings. Note the Galaxy Watch's ECG requires a paired Samsung Galaxy phone. These are wellness and screening features, not diagnostic medical devices.
Sources
- Apple Newsroom — ECG app and irregular heart rhythm notification on Apple Watch — Manufacturer announcement of the first direct-to-consumer wrist ECG (accessed July 19, 2026)
- U.S. FDA — De Novo classification, irregular rhythm notification feature (DEN180042) — FDA De Novo grant for the first over-the-counter irregular-rhythm notification wearable (accessed July 19, 2026)
- Cleveland Clinic — What To Know About Exercise and Heart Rate Zones — Cleveland Clinic explainer on training heart-rate zones (accessed July 19, 2026)
- Accuracy of Optical Heart Rate Sensing in Wearable Fitness Trackers (NIH/PMC) — Validation study of wrist optical HR accuracy across activities and ages (accessed July 19, 2026)
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