WatchFitTool

Amazfit Pop 3R vs Samsung Galaxy Watch8 LTE Classic

Size, specs & wrist fit compared

Amazfit Pop 3R
Amazfit Pop 3R
45.5mm × 45.5mmCheck offerView specs
Samsung Galaxy Watch8 LTE Classic
Samsung Galaxy Watch8 LTE Classic
46.4mm × 46.4mmCheck offerView specs

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Which one fits you

Both need much the same wrist — roughly 48–66mm across the flat of the wrist. Neither will fit where the other won't, so decide on thickness, weight and features instead.

The Samsung Galaxy Watch8 LTE Classic wears larger than the Amazfit Pop 3R (46.4mm vs 45.5mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.

On the wrist the Amazfit Pop 3R feels lighter (55.48g vs 63.5g, case only).

The Amazfit Pop 3R is thinner than 97% of the 460 46mm watches we hold thickness for, the Samsung Galaxy Watch8 LTE Classic than 97% — so both wear flatter than their widths suggest.

The Samsung Galaxy Watch8 LTE Classic is 0.9mm wider, 0.9mm longer, 0.2mm thinner and 8g heavier than the Amazfit Pop 3R. Both are circular.

Amazfit

Pop 3R

Samsung

Galaxy Watch8 LTE Classic

Case width
45.5mm
46.4mm+0.9mm
Lug-to-lug
45.5mm
46.4mm+0.9mm
Thickness
10.8mm
10.6mm−0.2mm
Weight
55.5g
63.5g+8g

Switch or add watches

Amazfit Pop 3R

Amazfit

Pop 3R

Samsung Galaxy Watch8 LTE Classic

Samsung

Galaxy Watch8 LTE Classic

Fit tool

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.

Your wrist
mm
≈ 146.9mm around

Amazfit Pop 3R

Case 45.5mm · Lug-to-lug 45.5mm · Thickness 10.8mm · 55g

Balanced Fit

45.5mm on a 55mm wrist

10:09TUE 12lug to lug 45.5mmyour wrist 55.0mm

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 4753mm lug to lug. This one is 45.5mm, so you could go bigger.

How to Measure

Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.

  1. 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. 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Complete Wrist Measurement Guide →
Against one you know

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 measurements
  • Across the wrist4.8mm spare each side

    Comfortable, with visible skin either side.

  • Off the wrist10.8mm off the skin

    Normal sports-watch height for a wrist this size. (10.8mm case, back against the skin)

  • How it seats~5.4mm under the rim

    Seats well, with the case back following most of the wrist.

  • Weight on the wrist55g

    Substantial without being a burden — the usual weight of a steel watch on a wrist this size. (1.0g per mm of wrist)

Samsung Galaxy Watch8 LTE Classic

Case 46.4mm · Lug-to-lug 46.4mm · Thickness 10.6mm · 64g

Balanced Fit

46.4mm on a 55mm wrist

10:09TUE 12lug to lug 46.4mmyour wrist 55.0mm

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 4753mm lug to lug. This one is 46.4mm, so you could go bigger.

How to Measure

Measure where you wear it, just below the wrist bone. Either of these works — the tool converts between them.

  1. 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. 2. Around — a tape, or a strip of paper marked and held against a ruler, snug the whole way round.
Complete Wrist Measurement Guide →
Against one you know

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 measurements
  • Across the wrist4.3mm spare each side

    Comfortable, with visible skin either side.

  • Off the wrist10.6mm off the skin

    Normal sports-watch height for a wrist this size. (10.6mm case, back against the skin)

  • How it seats~5.8mm under the rim

    Seats well, with the case back following most of the wrist.

  • Weight on the wrist64g

    Substantial without being a burden — the usual weight of a steel watch on a wrist this size. (1.2g per mm of wrist)

2D Dimension Schematics

Every case drawn to scale on a shared centre — from above, and in profile against the wrist.

Highlight
From above — same centre, true scale
From the side — how far each sits off the wrist
  • Amazfit Pop 3R45.5mm · 10.8mm thick
  • Samsung Galaxy Watch8 LTE Classic46.4mm · 10.6mm thick

3D preview

Amazfit Pop 3R vs Samsung Galaxy Watch8 LTE Classic on a wrist

Sized to your own wrist, turned any way you like.

Open 3D try-on

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 Pop 3R lasts 6.0× as long as the Samsung Galaxy Watch8 LTE Classic (12 days against 2 days).

Amazfit Pop 3RSamsung Galaxy Watch8 LTE Classic

  • Smartwatch

    12 days
    2 days

Specifications

The short version

10 key specs
SpecAmazfitPop 3RSamsungGalaxy Watch8 LTE Classic
Case Width45.5mm46.4mm
Thickness10.8mm10.6mm
Weight55.48g63.5g
ShapeCircularCircular
Water ResistanceWater resistant5 ATM
GPSNoYes
Display typeOLED/AMOLEDOLED/AMOLED
Screen size1.43 inches1.34 inches
Battery life12 days2 days
Released20232025

Every specification

114 specs
SpecAmazfit Pop 3RSamsung Galaxy Watch8 LTE Classic
Design
width45.546.4
height45.546.4
volume22.36 cm³22.82 cm³
weight55.48 g63.5 g
thickness10.810.6
resolution466 x 466 px438 x 438 px
screen size1.43 inches1.34 inches
Display typeOLED/AMOLEDOLED/AMOLED
Has a displayYesYes
pixel density460 ppi327 ppi
water resistanceWater resistantWater resistant
Always-On DisplayYesYes
has a touch screenYesYes
is designed for kidsNoNo
Watch band is replaceableYesYes
Has sapphire glass displayNoYes
Ingress Protection (IP) ratingIP68IP68
has branded damage-resistant glassNoNo
ATM rating5 ATM
width of band20 mm
waterproof depth rating50 m
maximum operating temperature35 °C
lowest potential operating temperature0 °C
Battery
charge time1.5 hours
battery life12 days2 days
has a removable batteryNoNo
Has a solar power batteryNoNo
has a rechargeable batteryYesYes
battery power445 mAh
has wireless chargingYes
Sensors
has GPSNoYes
has a compassNoYes
Has a barometerNoYes
has a gyroscopeNoYes
Has a cadence sensorNoNo
has an accelerometerYesYes
Monitors perspirationNoNo
Has a heart rate monitorYesYes
Has a temperature sensorNoYes
Monitors blood oxygenation levelsYesYes
Features
release date2023-06-292025-07-09
Has a stopwatchYesYes
Has smart alarmNoNo
warranty period1 years
Has call controlYesYes
Has silent alarmYesYes
Has notificationsYesYes
Has ECG technologyNoYes
Locates your phoneYesYes
has fall detectionNoYes
has voice commandsYesYes
Acquires GPS fasterNoYes
Has vibrating alertsYesYes
Can be used to answer callsYesYes
has irregular heart rate warningsNoYes
Has a built-in camera remote control functionNoYes
RAM2GB
has HRV trackingYes
internal storage64GB
measures VO2 maxYes
shows readiness levelYes
measures resting heart rateYes
has fast/slow heart rate notificationsYes
Connectivity
has NFCNoYes
supports ANT+NoNo
supports Wi-FiNoYes
supports GalileoNoYes
Bluetooth version5.25.3
has a cellular moduleNoYes
Is compatible with iOSYesNo
Is compatible with AndroidYesYes
SIM cards1 eSIM
Wi-Fi versionWi-Fi 4 (802.11n)
Miscellaneous
Has passcodeYesYes
Is compatible with WindowsNoNo
Is compatible with Mac OS XNoNo
has an external memory slotNoNo
has a battery level indicatorYesYes
has a socket for a 3.5 mm audio jackNoNo
Compatible with external heart rate monitorsYesYes
Has auto pauseYes
Compatible with smart scalesYes
App & Software
Ad-freeYesYes
Free appYesYes
Tracks BMIYesYes
Supports routesYesYes
Has achievementsYesYes
Has goal settingYesYes
Has exercise diaryYesYes
Can be personalisedYesYes
Has weight trackingYesYes
Predicts start dateYesYes
Tracks water intakeYesYes
Has inactivity alertsYesYes
Has period notificationsYesYes
Has temperature trackingNoYes
Provides activity reportsYesYes
Counts how many calories you've burnedYesYes
Has coachingYes
Includes mapsYes
Activity tracking
Measures paceYesYes
Tracks distanceYesYes
Tracks elevationYesYes
Designed for golfNoNo
Tracks your sleepYesYes
Tracks steps takenYesYes
Designed for divingNoNo
Has a route trackerYesYes
Has exercise taggingYesYes
Has multi-sport modeNoNo
Tracks calorie intakeYesYes
Provides sleep reportsYesYes
Detects activities automaticallyYesYes
Has a stroke counter for swimmingNoYes

Wrist Fit

Amazfit Pop 3R

Sits best on wrists ~4865mm wide (≈ 12.817.4cm circumference).

Samsung Galaxy Watch8 LTE Classic

Sits best on wrists ~4966mm wide (≈ 13.117.6cm circumference).

Frequently Asked Questions

Is the Amazfit Pop 3R bigger than the Samsung Galaxy Watch8 LTE Classic?

The Samsung Galaxy Watch8 LTE Classic is bigger — 46.4mm vs 45.5mm case width.

Which fits a smaller wrist better, the Amazfit Pop 3R or the Samsung Galaxy Watch8 LTE Classic?

The Amazfit Pop 3R suits wrists around 48–65mm wide, and the Samsung Galaxy Watch8 LTE Classic around 49–66mm. The one with the smaller lower bound is the safer pick for a small wrist.

Can I see the Amazfit Pop 3R and Samsung Galaxy Watch8 LTE Classic 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.

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