Oppo Reno4 Z 5G vs Samsung Galaxy A51 5G UW

Phones Images
PHONES
Phone Names Oppo Reno4 Z 5G Samsung Galaxy A51 5G UW
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 662, 4, 5, 13, 66
5G bands1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA260, 261 mmWave
SpeedHSPA, LTE, 5G 3.5 Gbps DLHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
Launch
Announced2020, September 29. Released 2020, October 152020, August 14
StatusDiscontinuedAvailable. Released 2020, August 14
Body
Build-Glass front (Gorilla Glass 3), plastic back, aluminum frame
Dimensions163.8 x 75.5 x 8.1 mm (6.45 x 2.97 x 0.32 in)158.8 x 73.4 x 8.6 mm (6.25 x 2.89 x 0.34 in)
SIMNano-SIM + Nano-SIMNano-SIM (pre-installed)
Weight184 g (6.49 oz)188.8 g (6.67 oz)
Display
ProtectionCorning Gorilla Glass 3+Corning Gorilla Glass 3
Resolution1080 x 2400 pixels, 20:9 ratio (~401 ppi density)1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Size6.57 inches, 104.2 cm2 (~84.3% screen-to-body ratio)6.5 inches, 102.0 cm2 (~87.5% screen-to-body ratio)
TypeIPS LCD, 120Hz, 480 nits (typ)Super AMOLED
Platform
CPUOcta-core (4x2.0 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55)Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver)
ChipsetMediatek Dimensity 800 (7 nm)Qualcomm SM7250 Snapdragon 765G 5G (7 nm)
GPUMali-G57 MC4Adreno 620
OSAndroid 10, upgradable to Android 11, ColorOS 11.1Android 10, One UI 2
Memory
Card slotNomicroSDXC (uses shared SIM slot)
Internal128GB 8GB RAM, 256GB 12GB RAM128GB 6GB RAM
 UFS 2.1UFS 2.1
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, panorama, HDR
Quad48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide), 1/4.0", 1.12µm Auxiliary lens48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 12 MP, f/2.2, 123˚ (ultrawide) 5 MP (macro) Auxiliary lens
Single2 MP5 MP, AF
Video4K@30fps, 1080p@30fps, gyro-EIS4K@30fps, 1080p@30/120fps; gyro-EIS
Selfie camera
Dual16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 2 MP, f/2.4, (depth)-
FeaturesHDRHDR
Single-32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Video1080p@30fps4K@30fps, 1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
 24-bit/192kHz audio-
Comms
Bluetooth5.1, A2DP, LE, aptX HD5.0, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, BDS, QZSSGPS, GLONASS, GALILEO, BDS
RadioNoFM radio, RDS, recording
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
 -ANT+
Battery
Charging18W wired15W wired
Stand-by-Up to 672 h
Talk time-Up to 5 h
TypeLi-Po 4000 mAhLi-Po 4500 mAh
Misc
ColorsInk Black, Dew WhitePrism Bricks Blue
ModelsCPH2065SM-A516V
PriceAbout 260 EURAbout 470 EUR
SAR-0.70 W/kg (head)     1.25 W/kg (body)    
SAR EU-0.59 W/kg (head)     1.32 W/kg (body)
Tests
Battery life Endurance rating 78h -
Camera Photo / Video-
Display Contrast ratio: 1284:1 (nominal)-
Loudspeaker -28.1 LUFS (Average) -
Performance AnTuTu: 295562 (v8) GeekBench: 2196 (v5.1) GFXBench: 16fps (ES 3.1 onscreen)-
OUR TESTS
Battery (old)Endurance rating 78h-
CameraPhoto / Video-
Display1284:1 contrast ratio, 398 nits max brightness (measured)-
Loudspeaker-28.1 LUFS (Average)-
PerformanceAnTuTu: 295562 (v8) GeekBench: 2196 (v5.1) GFXBench: 16fps (ES 3.1 onscreen)-