Amazfit Cheetah Square vs Samsung Galaxy Watch FE 40mm
Size, specs & wrist fit compared
As an Amazon Associate, WatchFitTool earns from qualifying purchases.
Which one fits you
On wrists narrower than about 46mm, the Samsung Galaxy Watch FE 40mm is the safer pick — it stays proportionate down to roughly 43mm, where the Amazfit Cheetah Square starts to hang over the edge. Above 46mm both sit cleanly, and the Amazfit Cheetah Square gives you more presence.
The Samsung Galaxy Watch FE 40mm wears larger than the Amazfit Cheetah Square (39.3mm vs 38.7mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
On the wrist the Samsung Galaxy Watch FE 40mm feels lighter (26.6g vs 37g, case only).
The Amazfit Cheetah Square is thinner than 74% of the 339 39mm watches we hold thickness for, the Samsung Galaxy Watch FE 40mm than 73% — so both wear flatter than their widths suggest.
The Samsung Galaxy Watch FE 40mm is 0.6mm wider, 3.6mm shorter, 0.1mm thinner and 10.4g lighter than the Amazfit Cheetah Square.
Amazfit
Cheetah Square
Samsung
Galaxy Watch FE - 40mm
Switch or add watches
Amazfit
Cheetah Square
Samsung
Galaxy Watch FE - 40mm
Watch Fit Tool
For sports watches, lug-to-lug (L2L) is what matters most — it decides whether a watch overhangs your wrist. Bulky is fine; overhang is not.
Measure at the point where you wear your watch — typically just below the wrist bone.
Flat width — lay your arm on a table, palm facing up, and measure straight across the top of your wrist with a ruler. Bone to bone; do not follow the curve down the sides.
Around — wrap a tape measure snugly round the wrist. No tape? Wrap a strip of paper, mark the overlap and hold the strip against a ruler.
Width ≠ circumference. They are different numbers — around 170mm is about 64mm across — so set the toggle to whichever one you actually measured before you type it in.
Amazfit Cheetah Square
Case 44.0mm · Lug-to-lug 44.0mm · Thickness 9.9mm · 37g
Balanced Fit
44mm on a 55mm wrist
Comfortably inside the edges of your wrist, and it seats and sits low enough to wear without thinking about it.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 44mm, so you could go bigger.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist5.5mm spare each side
Comfortable, with visible skin either side.
- Off the wrist9.9mm off the skin
Normal sports-watch height for a wrist this size. (9.9mm case, back against the skin)
- How it seats~4.7mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist37g
Light enough to forget you have it on. (0.7g per mm of wrist)
Samsung Galaxy Watch FE - 40mm
Case 39.3mm · Lug-to-lug 40.4mm · Thickness 9.8mm · 27g
Balanced Fit
40.4mm on a 55mm wrist
Comfortably inside the edges of your wrist, and it seats and sits low enough to wear without thinking about it.
On a 55mm wrist the sweet spot is 47–53mm lug to lug. This one is 40.4mm, so you could go bigger.
Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.
- 1. Flat width — arm flat on a table, palm up. Measure straight across the top of the wrist, bone to bone, ignoring the curve down the sides.
- 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Leather: Attaches at the lugs, so the case back rests on your skin. Thins and softens with wear. Typical figures, not this model’s own.
Show the measurementsHide the measurements
- Across the wrist7.3mm spare each side
Comfortable, with visible skin either side.
- Off the wrist9.8mm off the skin
Normal sports-watch height for a wrist this size. (9.8mm case, back against the skin)
- How it seats~3.2mm under the rim
Seats well, with the case back following most of the wrist.
- Weight on the wrist27g
Light enough to forget you have it on. (0.5g per mm of wrist)
2D Dimension Schematics
Every case drawn to scale on a shared centre — from above, and in profile against the wrist.
- Amazfit Cheetah Square38.7mm × 44mm · 9.9mm thick
- Samsung Galaxy Watch FE - 40mm39.3mm × 40.4mm · 9.8mm thick
3D preview
Amazfit Cheetah Square vs Samsung Galaxy Watch FE - 40mm on a wrist
Sized to your own wrist, turned any way you like.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Battery life compared
Furthest apart in Smartwatch mode, where the Amazfit Cheetah Square lasts 8.9× as long as the Samsung Galaxy Watch FE 40mm (8 days against 21.6 hours).
Amazfit Cheetah SquareSamsung Galaxy Watch FE 40mm
Smartwatch
8 days0.9 daysBattery Saver
28 hours—GPS
13 hours—
Specifications
The short version
11 key specs| Spec | AmazfitCheetah Square | SamsungGalaxy Watch FE - 40mm |
|---|---|---|
| Case Width | 38.7mm | 39.3mm |
| Lug-to-Lug | 44mm | 40.4mm |
| Thickness | 9.9mm | 9.8mm |
| Weight | 37g | 26.6g |
| Shape | Rectangle | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.75 inches | 1.2 inches |
| Battery life | 8 days | 0.9 days |
| Released | 2023 | 2024 |
Every specification
118 specs| Spec | Amazfit Cheetah Square | Samsung Galaxy Watch FE - 40mm |
|---|---|---|
| Design | ||
| width | 38.7 | 39.3 |
| height | 44 | 40.4 |
| volume | 16.86 cm³ | 15.56 cm³ |
| weight | 37 g | 26.6 g |
| thickness | 9.9 | 9.8 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 390 x 450 px | 396 x 396 px |
| screen size | 1.75 inches | 1.2 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 341 ppi | 330 ppi |
| width of band | 20 mm | 20 mm |
| water resistance | Waterproof | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| waterproof depth rating | 50 m | 50 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | Yes |
| Ingress Protection (IP) rating | IP68 | IP68 |
| has branded damage-resistant glass | No | No |
| Battery | ||
| charge time | 2 hours | 2 hours |
| battery life | 8 days | 0.9 days |
| battery power | 240 mAh | 247 mAh |
| has wireless charging | No | Yes |
| has a removable battery | No | No |
| battery life with GPS on | 13 hours | — |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in power save mode | 28 hours | — |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | Yes | Yes |
| Has a barometer | Yes | Yes |
| has a gyroscope | Yes | Yes |
| Has a cadence sensor | No | No |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | No |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | No | No |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2023-06-22 | 2024-06-13 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| warranty period | 1 years | 1 years |
| Has call control | No | 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 | Yes | Yes |
| Has vibrating alerts | Yes | Yes |
| Can be used to answer calls | No | Yes |
| has irregular heart rate warnings | Yes | Yes |
| Has a built-in camera remote control function | Yes | Yes |
| RAM | — | 1.5GB |
| has HRV tracking | — | Yes |
| internal storage | — | 16GB |
| has a front camera | — | No |
| Acquires GPS faster | — | Yes |
| number of microphones | — | 1 |
| shows readiness level | — | Yes |
| measures resting heart rate | — | Yes |
| has fast/slow heart rate notifications | — | Yes |
| Connectivity | ||
| has NFC | No | Yes |
| supports ANT+ | No | No |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5.3 | 5 |
| has a cellular module | No | Yes |
| Is compatible with iOS | Yes | No |
| Is compatible with Android | Yes | Yes |
| 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 | — |
| 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 | — |
| 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 | No |
| 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 |
| Has multi-sport mode | Yes | No |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | No | Yes |
Wrist Fit
Amazfit Cheetah Square
Sits best on wrists ~46–63mm wide (≈ 12.3–16.8cm circumference).
Samsung Galaxy Watch FE 40mm
Sits best on wrists ~43–58mm wide (≈ 11.5–15.5cm circumference).
Frequently Asked Questions
Is the Amazfit Cheetah Square bigger than the Samsung Galaxy Watch FE 40mm?
The Samsung Galaxy Watch FE 40mm is bigger — 39.3mm vs 38.7mm case width.
Which fits a smaller wrist better, the Amazfit Cheetah Square or the Samsung Galaxy Watch FE 40mm?
The Amazfit Cheetah Square suits wrists around 46–63mm wide, and the Samsung Galaxy Watch FE 40mm around 43–58mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Amazfit Cheetah Square and Samsung Galaxy Watch FE 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.