Physical features | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Model | Galaxy A51 5G (SM-A516U) | Reno4 Z 5G |
Other model names | Galaxy A51 SM-A516UZKAXAA (Unlocked) | Oppo Reno 4 Z 5G CPH2065 |
Country or region available |  USA |  (Global, International) |
Brand | Samsung | Oppo |
Release date | April, 2020 | October, 2020 |
Depth | 8.7 millimeters (0.34 inches) | 8.1 millimeters (0.32 inches) |
Size (width x height) | 73.6 x 158.9 millimeters (2.9 x 6.26 in) | 75.5 x 163.8 millimeters (2.97 x 6.45 in) |
Weight | 187 grams (6.55 ounces) | 184 grams (6.44 ounces) |
Qwerty physical keyboard | Not supported | Not supported |
Antenna | Internal antenna | Internal antenna |
Build, materials | Aluminum body, glass front, plastic back | Plastic body, glass front |
Protection against water and others | Not supported | Not supported |
System (OS) | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Operating system | Android 10 | Android 10 |
Firmware update | feature not registered | feature not registered |
Hardware | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Chipset | 64bit - Samsung Exynos 980 Octa (8nm) | 64bit - MediaTek MT6873V Dimensity 800 (7nm) |
CPU processor | Octa-Core, 2 processors: 2.2Ghz Dual-Core ARM Cortex-A77 1.8Ghz Hexa-Core ARM Cortex-A55 | Octa-Core, 2 processors: 2Ghz Quad-Core ARM Cortex-A76 2Ghz Quad-Core ARM Cortex-A55 |
GPU graphical controller | ARM Mali-G76 MP5 | ARM Mali-G57 MC4 |
RAM memory | 6GB LPDDR4X | 8GB LPDDR4X |
Internal storage | 128GB (105GB available) UFS 2.1 | 128GB (108GB available) UFS 2.1 |
External storage | Until 1TB microSD, microSDXC (dedicated slot) | Not supported |
Display | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Display type | Super AMOLED | LTPS IPS LCD |
Screen size | 6.5" inches | 6.57" inches |
Screen-to-body ratio | ~87.2% (screen-to-body ratio) | ~84.3% (screen-to-body ratio) |
Display resolution | 1080x2400 pixels (20:9) | 1080x2400 pixels (20:9) |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 405 PPI | 401 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 3 |
Display features | 60Hz | 120Hz, 480 nits |
Mobile networks | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
Maximum download/upload | 2000/200 Mbps | 3500/1920 Mbps |
Network technology | 2G, 3G, 4G, 5G | 2G, 3G, 4G, 5G |
Frequency, bands | Expand band detailsCollapse details |
GSM Mhz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
Primary 4G network | LTE Cat12/13 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 66) TD-LTE (38, 40, 41) VoLTE | LTE Cat (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 66) TD-LTE (38, 39, 40, 41) VoLTE |
Primary 5G network | SA/NSA/Sub6 (41, 78) | SA/NSA (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78) |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA |
Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
Secondary 3G network | Not supported | Not supported |
Secondary 4G network | Not supported | Not supported |
Secondary data network | Not supported | GPRS, EDGE |
Calling | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
Speakerphone | Supported | Supported |
Video calling | Supported | Supported |
Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
Camera | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Back camera (main camera) | (quad camera) 48 megapixels 12MP ultrawidef/2.213mm1.12µm 5MP telephotof/2.440mm 5MP depthf/2.21/5.0"1.12µm | (quad camera) 48 megapixels 8MP ultrawidef/2.2119º1/4.0"1.12µm 2MP depthf/2.4 2MP depthf/2.4 |
Main camera resolution | 8000x6000 pixels | 8000x6000 pixels |
Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 30 fps |
Flash | LED flash | LED flash |
Focal aperture | f/2.0 (aperture) | f/1.7 (aperture) |
Focal length | 26mm lens | 26mm lens |
Sensor size | 1/2" inches | 1/2" inches |
Pixel size | 0.8µm pixel | 0.8µm pixel |
Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
Touch focus | Supported | Supported |
Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
Zoom | Only digital zoom | Only digital zoom |
Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
BSI sensor | Not supported | Not supported |
HDR | HDR photo on both cameras | HDR photo on both cameras |
2ª camera | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Front camera (secondary) | 32 megapixels | (dual front camera) 16 megapixels 2MP depthf/2.4 |
Front camera resolution | 6528x4896 pixels | 4608x3456 pixels |
Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
Front flash | Not supported | Not supported |
Focal aperture | f/2.2 (aperture) | f/2.0 (aperture) |
Focal length | 26mm lens | 26mm lens |
Sensor size | 1/2.8" inches | 1/3.06" inches |
Pixel size | 0.8µm pixel | 1µm pixel |
Multimedia | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Radio | FM (RDS) | Not supported |
TV | Not supported | Not supported |
Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
Connectivity | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
TV output | Not supported | USB Type-C (reversible) |
Audio output | 3.5mm jack | 3.5mm jack |
Bluetooth | 5.0 + A2DP/LE | 5.1 + A2DP/LE |
WiFi | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO |
DLNA | Not supported | Not supported |
NFC | Supported | Supported |
GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS |
Infrared port | Not supported | Not supported |
Other functions | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Active noise cancellation | Supported | Supported |
Vibrating alert | Supported | Supported |
Ringtones | Polyphonic and customized | Polyphonic and customized |
Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
Sensors | Accelerometer Proximity sensor Compass Ambient Light sensor Gyroscope Hall effect Face unlock Fingerprint sensor (under display) ANT+
| Accelerometer Proximity sensor Compass Ambient Light sensor Gyroscope Face unlock Fingerprint sensor (side-mounted)
|
Other features | - Colors: Prism Cube Black, Prism Cube White, Prism Cube Pink - One UI 2 - Always On Display - WiFi direct, hotspot | - Colors: Ink Black, Dew White - ColorOS 7.2 - 24-bit/192kHz audio - Case included - WiFi direct, hotspot |
Power supply | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
Battery | LiPo: Li-Ion polymer (Non removable) | LiPo: Li-Ion polymer (Non removable) |
Battery capacity | 4500 mAh | 4000 mAh |
Charger, watts | 15W Fast battery charging | 18W (9V/2A) Fast battery charging |
Talk time autonomy | feature not registered | 1560 minutes | 26 hours | 1.1 days |
Standby | feature not registered | 21600 minutes | 360 hours | 15 days |
Radiation rate | Samsung Galaxy A51 5G (SM-A516U) | Oppo Reno4 Z 5G |
SAR 1.6W/kg (USA, Mexico, etc.) | 1.18W/kg (head) | 1.2W/kg (body) | feature not registered |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |