Product
Vivo X51 5G
Vivo X51 5G
Samsung Galaxy Note8
Samsung Galaxy Note8
Battery
Charging 33W wired, 57% in 30 min 15W wired, QC2 Wireless (Qi) (market dependent)
Music play - Up to 74 h
Talk time - Up to 22 h (3G)
Type 4315 mAh Li-Ion 3300 mAh, non-removable
Body
Build Glass front, glass back, aluminum frame Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions 158.5 x 72.8 x 8 mm (6.24 x 2.87 x 0.31 in) 162.5 x 74.8 x 8.6 mm (6.40 x 2.94 x 0.34 in)
SIM Nano-SIM + Nano-SIM Nano-SIMNano-SIM + Nano-SIM
Weight 181.5 g (6.42 oz) 195 g (6.88 oz)
  - IP68 dust tight and water resistant (immersible up to 1.5m for 30 min) Stylus
Comms
Bluetooth 5.1, A2DP, LE, aptX HD 5.0, A2DP, LE, aptX
NFC Yes Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, BDS, GALILEO
Radio No No
USB USB Type-C 2.0, OTG USB Type-C 3.1
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Protection - Corning Gorilla Glass 5
Resolution 1080 x 2376 pixels (~398 ppi density) 1440 x 2960 pixels, 18.5:9 ratio (~521 ppi density)
Size 6.56 inches, 104.6 cm2 (~90.6% screen-to-body ratio) 6.3 inches, 101.1 cm2 (~83.2% screen-to-body ratio)
Type AMOLED, 90Hz, HDR10+ Super AMOLED, HDR10
  - 3D Touch (home button only)
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Iris scanner, fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2
  - Samsung DeX (desktop experience support) ANT+ Bixby natural language commands and dictation Samsung Pay (Visa, MasterCard certified)
Launch
Announced 2020, October 21 2017, August 23. Released 2017, September
Status Available. Released 2020, October 23 Discontinued
Main Camera
Dual - 12 MP, f/1.7, 26mm (wide), 1/2.55", 1.4µm, dual pixel PDAF, OIS 12 MP, f/2.4, 52mm (telephoto), 1/3.6", 1.0µm, AF, OIS, 2x optical zoom
Features Laser AF, color spectrum sensor, Dual-LED dual-tone flash, HDR, panorama LED flash, auto-HDR, panorama
Quad 48 MP, f/1.6, (wide), PDAF, gimbal OIS 8 MP, f/3.4, 135mm (periscope telephoto), 1/4.0", PDAF, OIS, 5x optical zoom 13 MP, f/2.5, 50mm (telephoto), 1/2.8", 0.8µm, PDAF, 2x optical zoom 8 MP, f/2.2, 120˚, 16mm (ultrawide), 1/4.0", 1.12µm -
Video 4K@30fps, 1080p@30fps, gyro-EIS 4K@30fps, 1080p@30/60fps, 720p@240fps, stereo sound rec., HDR, gyro-EIS
Memory
Card slot No microSDXC (uses shared SIM slot) - dual SIM model only
Internal 256GB 8GB RAM 64GB 6GB RAM, 128GB 6GB RAM, 256GB 6GB RAM
  UFS 2.1 UFS 2.1
Misc
Colors Gray Midnight Black, Maple Gold, Orchid Gray, Deep Sea Blue, Star Pink
Models XE710 SM-N950F, SM-N950U, SM-N9500, SM-N950U1, SM-N950N, SM-N950W, SC-01K, SM-N950FD
SAR - 0.61 W/kg (head)     0.56 W/kg (body)    
SAR EU - 0.17 W/kg (head)     1.29 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66
5G bands 1, 3, 7, 8, 28, 38, 41, 77, 78 SA/NSA -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE (5CA) Cat16 1024/150 Mbps
Technology GSM / CDMA / HSPA / LTE / 5G GSM / HSPA / LTE
  CDMA 800 -
Our Tests
Audio quality - Noise -92.5dB / Crosstalk -93.2dB
Battery (old) - Endurance rating 89h
Camera - Photo / Video
Display - Contrast ratio: Infinite (nominal), 4.148(sunlight)
Loudspeaker - Voice 67dB / Noise 69dB / Ring 71dB
Performance - AnTuTu: 201065 (v7) GeekBench: 6784 (v4.4) GFXBench: 13fps (ES 3.1 onscreen)
Platform
Chipset Qualcomm SM7250 Snapdragon 765G 5G (7 nm) Exynos 8895 (10 nm) - EMEAQualcomm MSM8998 Snapdragon 835 (10 nm) - USA & China
CPU Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) Octa-core (4x2.3 GHz Mongoose M2 & 4x1.7 GHz Cortex-A53) - EMEAOcta-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo) - USA & China
GPU Adreno 620 Mali-G71 MP20 - EMEAAdreno 540 - USA & China
OS Android 10, Funtouch 10.0 Android 7.1.1 (Nougat), upgradable to Android 9.0 (Pie)
Selfie camera
Dual - 8 MP, f/1.7, 25mm (wide), 1/3.6", 1.22µm, AF 2 MP (dedicated iris scanner camera)
Features HDR HDR
Single 32 MP, f/2.5, 26mm (wide), 1/2.8", 0.8µm -
Video 1080p@30fps 1440p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes Yes
  32-bit/192kHz Hi-Res audio 32-bit/384kHz audio