At a Glance: The Verdict
| Apple Watch SE 3 | Samsung Galaxy Watch 8 |
|---|---|
|
Best For: iPhone owners who want the cheapest good smartwatch The value pick at $249. It nails the basics for iPhone users, but the 18-hour battery and single-band GPS show where Apple cut costs. |
Best For: Android owners who want the stronger all-around watch More sensors, multi-band GPS, and more than double the battery life. You pay $100 more, and for Android users it is worth it. |
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These are two of the most popular smartwatches you can buy, but they are built for different phones and different budgets. The Apple Watch SE 3 is the low-cost gateway into Apple’s ecosystem. The Galaxy Watch 8 is a fuller-featured tracker aimed at Android. Your phone will make most of this decision for you, so let’s cut to what actually separates them.
Key Differences
- Battery life: The Galaxy Watch 8 runs 40 hours per charge versus just 18 hours on the SE 3. That is more than double.
- GPS: The Galaxy Watch 8 has multi-band GPS for better accuracy in cities and on trails. The SE 3 uses single-band, which drifts more.
- Sensors: The Galaxy Watch 8 adds an electrical heart sensor and body composition (BIA) that the SE 3 does not have.
- Price: The SE 3 starts at $249. The Galaxy Watch 8 starts at $350, a $100 gap.
- Phone lock-in: The SE 3 only works with an iPhone. The Galaxy Watch 8 is built for Android.
Deep Dive Comparison
Design & Comfort
The Galaxy Watch 8 is the lighter watch at 30 grams in its 40mm case, versus 32.9 grams for the 44mm SE 3. Both use aluminum, though Samsung calls its version Armor Aluminum. Comfort is close, but the smaller, lighter Galaxy Watch 8 will feel better on thinner wrists, while the larger SE 3 face is easier to read at a glance. Both are rated for swimming, with the SE 3 at 50 meters and the Galaxy Watch 8 at 5 ATM.
Battery Life
This is not a close race. The Galaxy Watch 8 lasts 40 hours (about 1.7 days) in normal use, so you can get through a day and a night of sleep tracking without a top-up. The SE 3 lasts 18 hours (about 0.8 days), which means charging basically every day. Apple publishes a 7-hour GPS figure for the SE 3; Samsung publishes no GPS runtime for the Galaxy Watch 8, so there is no rated comparison to make.
Health & Fitness Features
Both track heart rate with an optical sensor and both include a temperature sensor. The Galaxy Watch 8 pulls ahead with its BioActive Sensor, which adds an electrical heart signal and BIA body composition readings for things like body fat percentage. Its multi-band GPS also logs more accurate routes and pace. The SE 3 covers the essentials well but relies on single-band GPS, so serious runners will see less precise distance data.
Smart Features
Both watches have a mic and speaker for calls, NFC tap-to-pay, and optional LTE if you want to leave your phone at home. The SE 3 doubles the onboard storage at 64GB versus 32GB, so it holds more downloaded music and apps. The catch is the ecosystem: the SE 3’s apps and payments live in Apple’s world, and the Galaxy Watch 8 lives in Google’s. Neither one crosses over.
Price & Value
The SE 3 is the clear value play at $249. You are getting a capable smartwatch for $100 less than the Galaxy Watch 8’s $350 sticker. But value is not the same as “more watch.” The extra $100 on the Galaxy Watch 8 buys you double the battery, better GPS, and body composition tracking. If those matter to you, the Samsung is the better spend. If they do not, the SE 3 saves you real money.
Technical Specs
| Spec | Apple Watch SE 3 | Samsung Galaxy Watch 8 |
|---|---|---|
| Launch Price | $249 | $349.99 |
| Weight | 32.9 g | 30.0 g |
| Case Material | Aluminum | Armor Aluminum |
| Display | 1.78-inch Always-On Retina OLED, 368 x 448 | 1.34-inch Super AMOLED, 438 x 438 |
| Water Rating | 50 meters | 5 ATM |
| Battery (Smartwatch) | 18 hours | 40 hours |
| Battery (GPS) | 7 hours | Not published |
| GPS | Single-band | Multi-band |
| Storage | 64GB | 32GB |
| Sensors | Optical heart (2nd gen), temperature, compass, altimeter, accelerometer, gyroscope, ambient light | BioActive (optical + electrical heart + BIA), temperature, accelerometer, barometer, gyro, geomagnetic, light |
The Verdict
Buy the Apple Watch SE 3 if you carry an iPhone and want the most watch for the least money. At $249 it is the smart entry point into Apple’s ecosystem, and for casual users the shorter battery and single-band GPS will not be dealbreakers.
Buy the Samsung Galaxy Watch 8 if you carry an Android phone, or if battery life and tracking accuracy matter to you. The 40-hour battery, multi-band GPS, and body composition sensor make it the stronger watch overall, and the extra $100 earns its keep. On pure hardware, the Galaxy Watch 8 wins. On price and iPhone fit, the SE 3 wins. Let your phone break the tie.
Frequently Asked Questions
Which watch is better overall?
On specs, the Galaxy Watch 8 is the stronger watch thanks to double the battery, multi-band GPS, and body composition tracking. But “better” depends on your phone, since neither watch crosses platforms. For iPhone users the SE 3 is the right call because the Galaxy Watch 8 will not pair with an iPhone.
How much better is the Galaxy Watch 8 battery?
Considerably. The Galaxy Watch 8 lasts 40 hours per charge versus 18 hours on the SE 3, which is more than double. Apple rates the SE 3 at 7 hours under GPS and Samsung publishes no GPS runtime for the Watch 8, but on everyday battery the Samsung is still the clear pick for long days and overnight sleep tracking.
Is the Apple Watch SE 3 worth $100 less?
Yes, if you own an iPhone and mostly want notifications, workouts, and payments. At $249 the SE 3 covers the daily basics for a lot less than the $349.99 Galaxy Watch 8. Just know you are trading away battery life, GPS accuracy, and the body composition sensor to save that money.
Can I use the Galaxy Watch 8 with an iPhone?
No. The Galaxy Watch 8 is built for Android and does not fully work with an iPhone. If you use an iPhone, the Apple Watch SE 3 is your option here; if you use Android, the Galaxy Watch 8 is the one to get.
Which is better for runners?
The Galaxy Watch 8, because its multi-band GPS logs more accurate distance and pace, especially around tall buildings and tree cover. The SE 3’s single-band GPS is fine for casual jogs but drifts more on serious routes. The longer 14-hour GPS battery also favors the Galaxy Watch 8 for long training days.
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