Amazfit Active Edge vs Samsung Galaxy Watch8 - LTE · 40mmSize, Specs & Wrist Fit Compared
The Amazfit Active Edge is 6.2mm wider, 3.9mm longer, 3.4mm thicker and 4g heavier than the Samsung Galaxy Watch8 - LTE · 40mm. Both are circular.
Measured against the Amazfit Active Edge.
- Case width
- 46.6mmbaseActive Edge40.4mm−6.2mmGalaxy Watch8 - LTE · 40mm
- Lug-to-lug
- 46.6mmbaseActive Edge42.7mm−3.9mmGalaxy Watch8 - LTE · 40mm
- Thickness
- 12mmbaseActive Edge8.6mm−3.4mmGalaxy Watch8 - LTE · 40mm
- Weight
- 34gbaseActive Edge30g−4gGalaxy Watch8 - LTE · 40mm
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Amazfit
Active Edge
Samsung
Galaxy Watch8 - LTE · 40mm
Which one fits you
On wrists narrower than about 49mm, the Samsung Galaxy Watch8 - LTE · 40mm is the safer pick — it stays proportionate down to roughly 45mm, where the Amazfit Active Edge starts to hang over the edge. Above 49mm both sit cleanly, and the Amazfit Active Edge gives you more presence.
The Amazfit Active Edge wears larger than the Samsung Galaxy Watch8 - LTE · 40mm (46.6mm vs 40.4mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Samsung Galaxy Watch8 - LTE · 40mm is the slimmer of the two (8.6mm vs 12mm), so it slides under a cuff more easily.
On the wrist the Samsung Galaxy Watch8 - LTE · 40mm feels lighter (30g vs 34g, case only).
Among the 117 47mm watches we hold thickness for, the Amazfit Active Edge is thinner than 68%, so it wears flatter than its width suggests.
Among the 509 40mm watches we hold thickness for, the Samsung Galaxy Watch8 - LTE · 40mm is thinner than 83%, so it wears flatter than its width suggests.
Specification Comparison
| Spec | AmazfitActive Edge | SamsungGalaxy Watch8 - LTE · 40mm |
|---|---|---|
| Case Width | 46.6mm | 40.4mm |
| Lug-to-Lug | 46.6mm | 42.7mm |
| Thickness | 12mm | 8.6mm |
| Weight | 34g | 30g |
| Shape | Circular | Circular |
| Water Resistance | 10 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | LCD | OLED/AMOLED |
| Screen size | 1.32 inches | 1.34 inches |
| Always-On Display | No | Yes |
| Battery life | 16 days | 2 days |
| Battery power | 370 mAh | 325 mAh |
| Has wireless charging | No | Yes |
| Has a removable battery | No | No |
| Has a solar power battery | No | No |
| Has a rechargeable battery | Yes | Yes |
| Has a battery level indicator | Yes | Yes |
| Released | 2023 | 2025 |
Hover a row to highlight that measurement in the schematics below.
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist. Built from the measurements, so it works for every watch whether or not it has a photo.
- Amazfit Active Edge46.6mm · 12mm thick
- Samsung Galaxy Watch8 - LTE · 40mm40.4mm × 42.7mm · 8.6mm thick
Amazfit Active Edge vs Samsung Galaxy Watch8 - LTE · 40mm on a wrist
Put Amazfit Active Edge and Samsung Galaxy Watch8 - LTE · 40mm on the same arm, sized to your own wrist, and turn it. Side by side or stacked on one spot, whichever answers the question faster.
- Amazfit Active Edge — 46.6mm case, standing 12mm off the wrist.
- Samsung Galaxy Watch8 - LTE · 40mm — 40.4mm case, 42.7mm lug-to-lug, standing 8.6mm off the wrist.
Whether that clears your wrist edges is the question worth answering, and it depends on your wrist rather than on the case diameter.
See them on a wrist in 3DCase shapes are generated from each watch's published measurements — case width, lug-to-lug and thickness — not from manufacturer 3D models, so the proportions are accurate while the dial is generic.
Battery life compared
Furthest apart in Smartwatch mode, where the Amazfit Active Edge lasts 8.0× as long as the Samsung Galaxy Watch8 - LTE · 40mm (16 days against 2 days).
Amazfit Active EdgeSamsung Galaxy Watch8 - LTE · 40mm
Battery Saver
576 hours—Smartwatch
16 days2 daysTraining
240 hours—GPS
20 hours—
Full Specification Comparison
120 specs| Spec | Amazfit Active Edge | Samsung Galaxy Watch8 - LTE · 40mm |
|---|---|---|
| Design | ||
| width | 46.6 | 40.4 |
| height | 46.6 | 42.7 |
| volume | 26.06 cm³ | 14.84 cm³ |
| weight | 34 g | 30 g |
| thickness | 12 | 8.6 |
| ATM rating | 10 ATM | 5 ATM |
| resolution | 360 x 360 px | 438 x 438 px |
| screen size | 1.32 inches | 1.34 inches |
| Display type | LCD | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 277 ppi | 327 ppi |
| width of band | 22 mm | 20 mm |
| water resistance | Waterproof | Water resistant |
| Always-On Display | No | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| waterproof depth rating | 100 m | 50 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | Yes |
| maximum operating temperature | 45 °C | 35 °C |
| Ingress Protection (IP) rating | IP68 | IP68 |
| has branded damage-resistant glass | No | No |
| lowest potential operating temperature | 0 °C | 0 °C |
| Battery | ||
| charge time | 2 hours | — |
| battery life | 16 days | 2 days |
| battery power | 370 mAh | 325 mAh |
| has wireless charging | No | Yes |
| has a removable battery | No | No |
| battery life with GPS on | 20 hours | — |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in training mode | 240 hours | — |
| battery life in power save mode | 576 hours | — |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | No | Yes |
| Has a barometer | No | Yes |
| has a gyroscope | No | Yes |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | No |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | No | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Has a cadence sensor | — | No |
| Features | ||
| release date | 2023-10-27 | 2025-07-09 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| warranty period | 1 years | — |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | No | Yes |
| Locates your phone | Yes | Yes |
| has fall detection | No | Yes |
| has voice commands | No | Yes |
| Acquires GPS faster | Yes | Yes |
| Has vibrating alerts | Yes | Yes |
| Can be used to answer calls | No | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | No | Yes |
| Has a built-in camera remote control function | Yes | Yes |
| RAM | — | 2GB |
| has HRV tracking | — | Yes |
| internal storage | — | 32GB |
| shows readiness level | — | Yes |
| has fast/slow heart rate notifications | — | Yes |
| Connectivity | ||
| has NFC | No | Yes |
| supports ANT+ | No | No |
| supports Wi-Fi | No | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5 | 5.3 |
| has a cellular module | No | Yes |
| Is compatible with iOS | Yes | No |
| Is compatible with Android | Yes | Yes |
| SIM cards | — | 1 eSIM |
| Wi-Fi version | — | Wi-Fi 4 (802.11n) |
| Miscellaneous | ||
| Has passcode | Yes | Yes |
| Has auto pause | Yes | Yes |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| has an external memory slot | No | No |
| Compatible with smart scales | Yes | Yes |
| has a battery level indicator | Yes | Yes |
| has a socket for a 3.5 mm audio jack | No | No |
| Compatible with external heart rate monitors | Yes | Yes |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Has coaching | Yes | Yes |
| Includes maps | Yes | Yes |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has live tracking | Yes | — |
| Has exercise diary | Yes | Yes |
| Predicts ovulation | Yes | — |
| Can be personalised | Yes | Yes |
| Has weight tracking | Yes | Yes |
| Predicts start date | Yes | Yes |
| Tracks water intake | Yes | Yes |
| Has inactivity alerts | Yes | Yes |
| Has period notifications | Yes | Yes |
| Has temperature tracking | No | Yes |
| Provides activity reports | Yes | Yes |
| Displays fertile window notifications | Yes | — |
| Counts how many calories you've burned | Yes | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | No | No |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | No |
| Has a route tracker | Yes | Yes |
| Has exercise tagging | Yes | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | Yes |
| Has multi-sport mode | — | No |
Wrist Fit
Amazfit Active Edge
Sits best on wrists ~49–67mm wide (≈ 13.1–17.9cm circumference).
Samsung Galaxy Watch8 - LTE · 40mm
Sits best on wrists ~45–61mm wide (≈ 12.0–16.3cm circumference).
Frequently Asked Questions
Is the Amazfit Active Edge bigger than the Samsung Galaxy Watch8 - LTE · 40mm?
The Amazfit Active Edge is bigger — 46.6mm vs 40.4mm case width.
Which fits a smaller wrist better, the Amazfit Active Edge or the Samsung Galaxy Watch8 - LTE · 40mm?
The Amazfit Active Edge suits wrists around 49–67mm wide, and the Samsung Galaxy Watch8 - LTE · 40mm around 45–61mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Amazfit Active Edge and Samsung Galaxy Watch8 - LTE · 40mm side by side at true scale?
Yes — the schematics and photos above show both watches at matched scale, and our fit tool overlays each on your wrist width.