| Product |
Oppo A7x
|
Samsung Galaxy M55s
|
| Battery |
| Charging |
10W wired |
45W wired |
| Type |
Li-Po 3500 mAh, non-removable |
5000 mAh |
| Body |
| Build |
Glass front (Gorilla Glass 5), plastic back, plastic frame |
- |
| Dimensions |
156.7 x 74 x 8 mm (6.17 x 2.91 x 0.31 in) |
163.9 x 76.5 x 7.8 mm (6.45 x 3.01 x 0.31 in) |
| SIM |
Nano-SIM + Nano-SIM |
Nano-SIM + Nano-SIM |
| Weight |
169 g (5.96 oz) |
180 g (6.35 oz) |
| Comms |
| Bluetooth |
4.2, A2DP, LE |
5.2, A2DP, LE |
| NFC |
No |
Yes |
| Positioning |
GPS, GLONASS, BDS |
GPS, GALILEO, GLONASS, BDS, QZSS |
| Radio |
FM radio |
No |
| USB |
microUSB 2.0, OTG |
USB Type-C 2.0, OTG |
| WLAN |
Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct |
Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Display |
| Protection |
Corning Gorilla Glass 5 |
- |
| Resolution |
1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density) |
1080 x 2400 pixels, 20:9 ratio (~393 ppi density) |
| Size |
6.3 inches, 97.4 cm2 (~84.0% screen-to-body ratio) |
6.7 inches, 108.4 cm2 (~86.4% screen-to-body ratio) |
| Type |
IPS LCD |
Super AMOLED+, 120Hz, 1000 nits (HBM) |
| Features |
| Sensors |
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Launch |
| Announced |
2018, September. Released 2018, September |
2024, September 24 |
| Status |
Discontinued |
Available. Released 2024, September 26 |
| Main Camera |
| Dual |
|
- |
| Features |
LED flash, HDR, panorama |
LED flash, panorama, HDR |
| Triple |
- |
|
| Video |
1080p@30fps |
4K@30fps, 1080p@30/60fps, gyro-EIS, OIS |
| Memory |
| Card slot |
microSDXC (dedicated slot) |
microSDXC (uses shared SIM slot) |
| Internal |
64GB 4GB RAM, 128GB 4GB RAM |
128GB 8GB RAM, 256GB 8GB RAM |
|
eMMC 5.1 |
- |
| Misc |
| Colors |
Starry Purple, Ice Flame Blue |
Thunder Black, Coral Green |
| Models |
PBBM00, PBBT00 |
SM-M558B, SM-M558B/DS |
| SAR |
- |
|
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 900 / 1900 / 2100 |
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands |
1, 3, 5, 7, 8, 34, 38, 39, 40, 41 |
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 38, 40, 41, 66 |
| 5G bands |
- |
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 |
| Speed |
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat13 600/100 Mbps |
HSPA, LTE, 5G |
| Technology |
GSM / CDMA / HSPA / EVDO / LTE |
GSM / HSPA / LTE / 5G |
|
CDMA2000 1xEV-DO |
- |
| Platform |
| Chipset |
Mediatek MT6771 Helio P60 (12 nm) |
Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm) |
| CPU |
Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) |
Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510) |
| GPU |
Mali-G72 MP3 |
Adreno 644 |
| OS |
Android 8.1 (Oreo), ColorOS 5.2 |
Android 14, up to 4 major Android upgrades, One UI 6.1 |
| Selfie camera |
| Features |
HDR |
- |
| Single |
|
50 MP, f/2.4, (wide) |
| Video |
1080p@30fps |
4K@30fps, 1080p@30/60fps |
| Sound |
| 3.5mm jack |
Yes |
No |
| Loudspeaker |
Yes |
Yes, with stereo speakers |
