Best Smartwatches Compared: Apple, Samsung, Google, Garmin and Huawei Head-to-Head
Choosing a smartwatch is harder than it used to be. Every major brand now tracks heart rate, sleep and workouts, so the real differences are in battery life, phone compatibility, health features and software support. In this comparison we look at the current flagship lineup from Apple, Samsung, Google, Garmin and Huawei, explain who each watch suits, and help you pick the right one without paying for features you will never use.
Note: Specs below are based on manufacturer figures for each brand’s current flagship at the time of writing. Brands release new models every year, so check the latest version and local pricing before you buy.
Quick Comparison Table
| Model | Works With | Battery (typical, maker’s figure) | Best For |
|---|---|---|---|
| Apple Watch Series 11 | iPhone only | Up to about 24 hours | iPhone users who want the most polished all-rounder |
| Apple Watch Ultra 3 | iPhone only | Up to about 42 hours | Outdoor sports, hiking, diving, longer battery |
| Samsung Galaxy Watch8 | Android | Around 1–2 days depending on use | Samsung Galaxy phone owners |
| Google Pixel Watch 4 | Android | Up to about 30 hours (41mm) / 40 hours (45mm) | Pixel users who want clean Wear OS and Fitbit health data |
| Garmin Forerunner 970 | iPhone & Android | Up to about 15 days (smartwatch mode) | Runners and serious training |
| Huawei Watch GT 6 | iPhone & Android | Up to about 2–3 weeks (46mm) | Long battery life at a lower price |
Apple Watch Series 11: The Best Choice for iPhone Users
If you own an iPhone, the Apple Watch Series 11 is the easiest recommendation. Notifications, Apple Pay, Siri, iMessage replies and the huge app library all work smoothly. Health tracking is broad: heart rate, ECG, blood oxygen (availability varies by region), sleep tracking with a sleep score, and hypertension notifications in supported countries.
Strengths
- Smoothest app and notification experience of any smartwatch
- Strong safety features such as fall detection and Emergency SOS
- Excellent resale value and long software support
Weaknesses
- Does not work with Android phones at all
- Battery life is still roughly one day, so daily charging is normal
Apple Watch Series 11 on Amazon Japan →
Apple Watch Ultra 3: For Outdoor and Endurance Use
The Apple Watch Ultra 3 keeps the same software but adds a larger, brighter titanium case, a customizable Action button, dual-frequency GPS, a loud emergency siren and satellite-based emergency features in supported regions. Battery life is roughly double the standard model, which matters on long hikes or race days.
It is expensive and bulky on small wrists, so it only makes sense if you actually train outdoors or want multi-day battery on an Apple watch.
Apple Watch Ultra 3 on Amazon Japan →
Samsung Galaxy Watch8: The Android All-Rounder
The Galaxy Watch8 is the closest Android equivalent to the Apple Watch. It runs Wear OS with Samsung’s One UI Watch, supports Google apps, and includes Gemini voice assistance. Health features include heart rate, sleep coaching, body composition measurement, and newer wellness metrics such as an antioxidant index and bedtime guidance.
Strengths
- Thin, comfortable design with a bright AMOLED display
- Detailed sleep and body composition data
- Deep integration with Galaxy phones
Weaknesses
- Some health features (such as ECG and blood pressure) require a Samsung phone and may be region-limited
- Battery life is similar to other Wear OS watches: plan to charge every day or two
Samsung Galaxy Watch8 on Amazon Japan →
Google Pixel Watch 4: Clean Wear OS With Fitbit Health
The Pixel Watch 4 offers the purest version of Wear OS, a domed display, and Fitbit’s well-regarded health and sleep tracking built in. Google has improved battery life and made the watch easier to repair. Gemini is available for voice tasks, and LTE models add satellite emergency messaging in supported regions.
It works with most Android phones, not just Pixels, which makes it a good alternative if you do not use a Samsung phone. Some advanced Fitbit insights may require a Fitbit Premium subscription.
Google Pixel Watch 4 on Amazon Japan →
Garmin Forerunner 970: Built for Runners
Garmin takes a different approach. The Forerunner 970 focuses on training rather than apps. You get an AMOLED screen, accurate multi-band GPS, offline maps, a built-in flashlight, and detailed training metrics such as training readiness, recovery time, running dynamics and race predictions.
Strengths
- Battery measured in days, not hours
- Works with both iPhone and Android
- No subscription needed for core training features
Weaknesses
- Limited third-party apps and basic smart features
- More expensive than many general-purpose smartwatches
If you want something cheaper from Garmin for everyday use, the Venu series offers a more lifestyle-oriented design.
Garmin Forerunner 970 on Amazon Japan →
Huawei Watch GT 6: Long Battery Life for Less
The Huawei Watch GT 6 is the value pick. It looks like a premium analog-style watch, offers solid heart rate, sleep and GPS tracking, and lasts well over a week between charges in typical use. It works with both iPhone and Android through the Huawei Health app.
The trade-off is a limited app ecosystem, no Google services, and more restricted payment and notification-reply features, depending on your phone and region. If you mainly want fitness tracking and notifications with minimal charging, it is hard to beat for the price.
Huawei Watch GT 6 on Amazon Japan →
How to Choose the Right Smartwatch
Instead of comparing every spec, answer these four questions:
- Which phone do you use? iPhone users should start with Apple Watch. Android users should look at Galaxy Watch or Pixel Watch. Garmin and Huawei work with both.
- How often will you charge it? If daily charging bothers you, Garmin or Huawei will fit your routine better.
- Do you need apps or training data? Apple and Wear OS watches win on apps and payments. Garmin wins on serious training analysis.
- Do you pay with your watch? In Japan, check support for Suica and your preferred payment services before buying, as support differs by brand.
Useful Accessories
A spare charger and a screen protector are worth buying on day one. Charging cables are easy to lose, and a scratched display is the most common cosmetic damage.
- Smartwatch screen protectors on Amazon Japan →
- Smartwatch replacement bands on Amazon Japan →
- Smartwatch charging stands on Amazon Japan →
Final Verdict
For most people, the choice depends on your phone. iPhone users get the best experience with the Apple Watch Series 11, or the Ultra 3 if they want more battery and toughness. Android users should pick the Galaxy Watch8 with a Samsung phone, or the Pixel Watch 4 for clean software and Fitbit health tracking. Runners will get the most from the Garmin Forerunner 970, and anyone who hates charging should consider the Huawei Watch GT 6.
Whichever you choose, buy from a seller with a clear return policy and check the fit on your wrist. Comfort matters as much as features on a device you wear all day.
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