Samsung
Device summary
OPPO
A3 Pro
Full specifications
| Basic information | ||
|---|---|---|
| Release year | 2024 | 2024 |
| Starting price | — | — |
| Display size | 6.7-inch | 6.7-inch |
| Dimensions | 76.5 mm × 163.9 mm × 7.8 mm | 76.1 mm × 165.8 mm × 7.7 mm |
| Weight | 180 g | 186 g |
| Front material | — | — |
| Back material | — | — |
| Display | ||
| Display technology | Super AMOLED Plus | LCD |
| Resolution | 1080 × 2400 | 1604 × 720 |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | — | 1000 nits |
| Protection | — | China Southern Glass (twice-reinforced) |
| Performance | ||
| Chipset | Qualcomm Snapdragon 7 Gen 1 | MediaTek Dimensity 6300 |
| RAM | 8 GB | 6 GB, 8 GB |
| Storage | 128 GB | 128 GB, 256 GB |
| Expandable storage | Yes | Yes |
| Cameras | ||
| Main camera | Wide · 50 MP · ƒ/1.8 · OIS | — |
| Ultra-wide camera | Ultra Wide · 8 MP · ƒ/2.2 | — |
| Macro camera | Macro · 2 MP · ƒ/2.4 | — |
| Front cameras | Selfie · 50 MP · ƒ/2.4 | — |
| Battery & charging | ||
| Wired charging | 25 W | 45 W |
| Charging standard | Super Fast Charging | SUPERVOOC |
| Typical capacity | 5000 mAh | 5100 mAh |
| Rated capacity | — | 4970 mAh |
| Connectivity | ||
| Cellular | 5G, LTE, 3G, 2G | 5G, LTE, 3G, 2G |
| Wi‑Fi | Wi-Fi 6 | Wi-Fi 5 |
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.3 |
| USB | USB Type-C | USB Type-C |
| NFC | Yes | Yes |
| Basic information | ||
|---|---|---|
| Release year | 2024 | 2024 |
| Starting price | — | — |
| Display size | 6.7-inch | 6.7-inch |
| Dimensions | 76.5 mm × 163.9 mm × 7.8 mm | 76.1 mm × 165.8 mm × 7.7 mm |
| Weight | 180 g | 186 g |
| Front material | — | — |
| Back material | — | — |
| Display | ||
| Display technology | Super AMOLED Plus | LCD |
| Resolution | 1080 × 2400 | 1604 × 720 |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | — | 1000 nits |
| Protection | — | China Southern Glass (twice-reinforced) |
| Performance | ||
| Chipset | Qualcomm Snapdragon 7 Gen 1 | MediaTek Dimensity 6300 |
| RAM | 8 GB | 6 GB, 8 GB |
| Storage | 128 GB | 128 GB, 256 GB |
| Expandable storage | Yes | Yes |
| Cameras | ||
| Main camera | Wide · 50 MP · ƒ/1.8 · OIS | — |
| Ultra-wide camera | Ultra Wide · 8 MP · ƒ/2.2 | — |
| Macro camera | Macro · 2 MP · ƒ/2.4 | — |
| Front cameras | Selfie · 50 MP · ƒ/2.4 | — |
| Battery & charging | ||
| Wired charging | 25 W | 45 W |
| Charging standard | Super Fast Charging | SUPERVOOC |
| Typical capacity | 5000 mAh | 5100 mAh |
| Rated capacity | — | 4970 mAh |
| Connectivity | ||
| Cellular | 5G, LTE, 3G, 2G | 5G, LTE, 3G, 2G |
| Wi‑Fi | Wi-Fi 6 | Wi-Fi 5 |
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.3 |
| USB | USB Type-C | USB Type-C |
| NFC | Yes | Yes |
Key differences
The most meaningful measured gaps in size and weight — not an overall winner.
Height
A3 Pro
1.9 mm taller · minor difference
Weight
Galaxy M55
6 g lighter · minor difference
Width
Very similar width
Thickness
Very similar thickness
What these size differences mean
Calculated from the dimensions shown, rounded to 0.1 mm and 1 g. Percentages use the smaller measurement as the reference. Fold and rotation settings affect the dimensions compared.
- Galaxy M55 is 0.4 mm (0.5% relative to A3 Pro) wider. Check this difference against the width of your current device and pocket opening.
- A3 Pro is 1.9 mm (1.2% relative to Galaxy M55) taller. This describes the body outline; screen diagonal alone does not tell you the overall size.
- Galaxy M55 is 0.1 mm (1.3% relative to A3 Pro) thicker. Cases and camera protrusions can change the clearance you need.
- Galaxy M55 is 6 g lighter. This is the listed device-weight difference, not a measured comfort rating.
Use these figures to compare physical size. They do not establish one-handed reach, pocket fit, durability or an overall winner.
Size in everyday life
Picture it in your front pocket.
2018 US jeans study · 20 brands · 80 pairs · Approx. 32-inch waists
Galaxy M55
A3 Pro
Sources and measurement notes
Sizometry compares published specifications and calculates differences. These are not hands-on measurements or tests of comfort, performance or pocket fit.
Galaxy M55
No source link is recorded for this model yet. Treat its listed figures as unverified.
Check the exact model, year, region and configuration on the linked page. References may cover several variants. Folded and unfolded dimensions differ; cases and camera protrusions may change the space a device needs. Drawings share a relative scale and are not calibrated to life size on your screen.
Galaxy M55 vs A3 Pro Size Comparison
User Experience Summary
Galaxy M55
Strengths
- Vivid 120Hz Super AMOLED Plus display with punchy colors
- Dependable all-day battery life with 45W fast-charging support
- Stereo speakers and under-display fingerprint sensor uncommon at this price
Compromises
- Camera app is noticeably slow, especially for automatic night-mode shots
- Battery and camera resolution reduced compared with the previous M54
- Phone runs warm during extended gaming or camera app use
A3 Pro
Strengths
- 5,100 mAh battery delivers exceptional all-day endurance
- Slim 7.68mm profile despite a large internal battery
- 45W SUPERVOOC charging is fast for the price tier
Compromises
- 720p display resolution looks soft for text and fine detail
- Noticeable motion blur from the LCD panel's response time
- Single functional rear camera lens limits shooting versatility