Samsung Galaxy Watch 4 Classic - LTE · 46mm vs Samsung Galaxy Watch5 Pro - 45mmSize, Specs & Wrist Fit Compared
The Samsung Galaxy Watch 4 Classic - LTE · 46mm is 0.5mm wider, 0.5mm longer, 1mm thicker and 5.5g heavier than the Samsung Galaxy Watch5 Pro - 45mm. Both are circular.
Measured against the Samsung Galaxy Watch 4 Classic - LTE · 46mm.
- Case width
- 45.5mmbaseGalaxy Watch 4 Classic - LTE · 46mm45mm−0.5mmGalaxy Watch5 Pro - 45mm
- Lug-to-lug
- 45.5mmbaseGalaxy Watch 4 Classic - LTE · 46mm45mm−0.5mmGalaxy Watch5 Pro - 45mm
- Thickness
- 11mmbaseGalaxy Watch 4 Classic - LTE · 46mm10mm−1mmGalaxy Watch5 Pro - 45mm
- Weight
- 52gbaseGalaxy Watch 4 Classic - LTE · 46mm46.5g−5.5gGalaxy Watch5 Pro - 45mm
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Samsung
Galaxy Watch 4 Classic - LTE · 46mm
Samsung
Galaxy Watch5 Pro - 45mm
Which one fits you
Both need much the same wrist — roughly 47–65mm 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 Watch 4 Classic - LTE · 46mm wears larger than the Samsung Galaxy Watch5 Pro - 45mm (45.5mm vs 45mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Samsung Galaxy Watch5 Pro - 45mm is the slimmer of the two (10mm vs 11mm), so it slides under a cuff more easily.
On the wrist the Samsung Galaxy Watch5 Pro - 45mm feels lighter (46.5g vs 52g, case only).
Among the 461 46mm watches we hold thickness for, the Samsung Galaxy Watch 4 Classic - LTE · 46mm is thinner than 97%, so it wears flatter than its width suggests.
Among the 386 45mm watches we hold thickness for, the Samsung Galaxy Watch5 Pro - 45mm is thinner than 99%, so it wears flatter than its width suggests.
Specification Comparison
| Spec | SamsungGalaxy Watch 4 Classic - LTE · 46mm | SamsungGalaxy Watch5 Pro - 45mm |
|---|---|---|
| Case Width | 45.5mm | 45mm |
| Thickness | 11mm | 10mm |
| Weight | 52g | 46.5g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.4 inches | 1.4 inches |
| Always-On Display | Yes | Yes |
| Charge time | 2 hours | 1.5 hours |
| Battery life | 2 days | 3.5 days |
| Battery power | 361 mAh | 590 mAh |
| Has wireless charging | Yes | 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 | 2021 | 2022 |
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.
- Samsung Galaxy Watch 4 Classic - LTE · 46mm45.5mm · 11mm thick
- Samsung Galaxy Watch5 Pro - 45mm45mm · 10mm thick
Samsung Galaxy Watch 4 Classic - LTE · 46mm vs Samsung Galaxy Watch5 Pro - 45mm on a wrist
Put Samsung Galaxy Watch 4 Classic - LTE · 46mm and Samsung Galaxy Watch5 Pro - 45mm 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.
- Samsung Galaxy Watch 4 Classic - LTE · 46mm — 45.5mm case, standing 11mm off the wrist.
- Samsung Galaxy Watch5 Pro - 45mm — 45mm case, standing 10mm 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 Samsung Galaxy Watch5 Pro - 45mm lasts 1.8× as long as the Samsung Galaxy Watch 4 Classic - LTE · 46mm (3.5 days against 2 days).
Samsung Galaxy Watch 4 Classic - LTE · 46mmSamsung Galaxy Watch5 Pro - 45mm
Smartwatch
2 days3.5 daysBattery Saver
—80 hoursGPS
10 hours—
Full Specification Comparison
122 specs| Spec | Samsung Galaxy Watch 4 Classic - LTE · 46mm | Samsung Galaxy Watch5 Pro - 45mm |
|---|---|---|
| Design | ||
| width | 45.5 | 45 |
| height | 45.5 | 45 |
| volume | 22.77 cm³ | 20.25 cm³ |
| weight | 52 g | 46.5 g |
| thickness | 11 | 10 |
| ATM rating | 5 ATM | 5 ATM |
| resolution | 450 x 450 px | 450 x 450 px |
| screen size | 1.4 inches | 1.4 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 455 ppi | 321 ppi |
| width of band | 20 mm | 20 mm |
| water resistance | Waterproof | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| Gorilla Glass version | Gorilla Glass DX+ | — |
| 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 | Yes | No |
| is designed for kids | — | No |
| maximum operating temperature | — | 35 °C |
| lowest potential operating temperature | — | 35 °C |
| Battery | ||
| charge time | 2 hours | 1.5 hours |
| battery life | 2 days | 3.5 days |
| battery power | 361 mAh | 590 mAh |
| has wireless charging | Yes | Yes |
| has a removable battery | No | No |
| battery life with GPS on | 10 hours | — |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in power save mode | — | 80 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 | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| RAM | 1.5GB | 1.5GB |
| CPU speed | 2 x 1.18 GHz | 2 x 1.18 GHz |
| release date | 2021-08-11 | 2022-08-10 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| has HRV tracking | No | Yes |
| internal storage | 16GB | 16GB |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | Yes | Yes |
| Locates your phone | Yes | Yes |
| has a front camera | No | No |
| has fall detection | Yes | Yes |
| has voice commands | Yes | Yes |
| Acquires GPS faster | No | No |
| Has vibrating alerts | Yes | Yes |
| number of microphones | 1 | 1 |
| shows readiness level | No | No |
| Can be used to answer calls | Yes | Yes |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | Yes | Yes |
| has fast/slow heart rate notifications | Yes | Yes |
| Has a built-in camera remote control function | Yes | Yes |
| warranty period | — | 1 years |
| Connectivity | ||
| has NFC | Yes | Yes |
| SIM cards | 1 eSIM | — |
| Wi-Fi version | Wi-Fi 4 (802.11n) | Wi-Fi 4 (802.11n) |
| supports ANT+ | No | No |
| supports Wi-Fi | Yes | Yes |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5 | 5.2 |
| has a cellular module | Yes | No |
| Is compatible with iOS | No | No |
| Is compatible with Android | Yes | Yes |
| Miscellaneous | ||
| has aptX | No | No |
| 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 |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has exercise diary | Yes | 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 |
| Counts how many calories you've burned | Yes | Yes |
| Includes maps | — | Yes |
| Predicts ovulation | — | 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 | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | Yes |
Wrist Fit
Samsung Galaxy Watch 4 Classic - LTE · 46mm
Sits best on wrists ~48–65mm wide (≈ 12.8–17.4cm circumference).
Samsung Galaxy Watch5 Pro - 45mm
Sits best on wrists ~47–64mm wide (≈ 12.6–17.1cm circumference).
Frequently Asked Questions
Is the Samsung Galaxy Watch 4 Classic - LTE · 46mm bigger than the Samsung Galaxy Watch5 Pro - 45mm?
The Samsung Galaxy Watch 4 Classic - LTE · 46mm is bigger — 45.5mm vs 45mm case width.
Which fits a smaller wrist better, the Samsung Galaxy Watch 4 Classic - LTE · 46mm or the Samsung Galaxy Watch5 Pro - 45mm?
The Samsung Galaxy Watch 4 Classic - LTE · 46mm suits wrists around 48–65mm wide, and the Samsung Galaxy Watch5 Pro - 45mm around 47–64mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Samsung Galaxy Watch 4 Classic - LTE · 46mm and Samsung Galaxy Watch5 Pro - 45mm 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.