Product
Oppo R11s
Oppo R11s
Samsung Galaxy M56
Samsung Galaxy M56
Battery
Charging 20W wired 45W wired
Type Li-Po 3200 mAh, non-removable 5000 mAh
Body
Build Glass front (Gorilla Glass 5), aluminum back, aluminum frame Glass front (Gorilla Glass Victus+), plastic frame, glass back (Gorilla Glass Victus+)
Dimensions 155.1 x 75.5 x 7.1 mm (6.11 x 2.97 x 0.28 in) 162 x 77.3 x 7.2 mm (6.38 x 3.04 x 0.28 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 153 g (5.40 oz) 180 g (6.35 oz)
Comms
Bluetooth 4.2, A2DP, LE, EDR 5.3, A2DP, LE
NFC No No
Positioning GPS, GLONASS GPS, GALILEO, GLONASS, BDS, QZSS
Radio No No
USB microUSB 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, 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 Corning Gorilla Glass Victus+
Resolution 1080 x 2160 pixels, 18:9 ratio (~401 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~382 ppi density)
Size 6.01 inches, 93.7 cm2 (~80.0% screen-to-body ratio) 6.74 inches, 111.5 cm2 (~89.0% screen-to-body ratio)
Type AMOLED Super AMOLED+, 120Hz
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2017, October. Released 2017, November 2025, April 17
Status Discontinued Available. Released 2025, April 17
Main Camera
Dual 16 MP, f/1.7, 1/2.8", 1.12µm, PDAF 20 MP, f/1.7, 1/2.8", 1.0µm, AF -
Features LED flash, HDR, panorama LED flash, panorama, HDR
Triple - 50 MP, f/1.8, (wide), PDAF, OIS 8 MP, f/2.2, (ultrawide) 2 MP, f/2.4, (macro)
Video 4K@30fps, 1080p@30fps 4K@30fps, 1080p@30/60fps, gyro-EIS, OIS, 10-bit HDR
Memory
Card slot microSDXC (uses shared SIM slot) No
Internal 64GB 4GB RAM 128GB 8GB RAM, 256GB 8GB RAM
  eMMC 5.1 UFS 3.1
Misc
Colors Red, Black, Champagne Black, Light Green
Models CPH1719, R11s SM-M566B, SM-M566B/DS
SAR - 0.71 W/kg (head)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 8, 34, 38, 39, 40, 41 - R11s 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66
5G bands - 1, 3, 5, 8, 28, 40, 41, 78 SA/NSA/Sub6
Speed HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps HSPA, LTE, 5G
Technology GSM / CDMA / HSPA / EVDO / LTE GSM / HSPA / LTE / 5G
  1, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41 - R11st -
Our Tests
Audio quality Noise -93.4dB / Crosstalk -90.84dB -
Battery (old) Endurance rating 77h -
Camera Photo / Video -
Display Contrast ratio: Infinity (nominal), 3.153 (sunlight) -
Loudspeaker Voice 67dB / Noise 72dB / Ring 73dB -
Performance GeekBench: 5907 (v4.4) GFXBench: 8.7fps (ES 3.1 onscreen) -
Platform
Chipset Qualcomm SDM660 Snapdragon 660 (14 nm) Exynos 1480 (4 nm)
CPU Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Octa-core (4x2.75 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Adreno 512 Xclipse 530
OS Android 7.1.1 (Nougat), ColorOS 3.2 Android 15, up to 6 major Android upgrades, One UI 7
Selfie camera
Single 20 MP, f/2.0, (wide), 1/2.8", 1.0µm 12 MP, f/2.2, (wide)
Video 1080p@30fps Yes
Sound
3.5mm jack Yes No
Loudspeaker Yes Yes