Product
Xiaomi Mi 4s
Xiaomi Mi 4s
Vivo V17 Neo
Vivo V17 Neo
Battery
Charging 18W wired, QC2, 40% in 60 min 18W wired
Type Li-Ion 3260 mAh, non-removable 4500 mAh, non-removable
Body
Dimensions 139.3 x 70.8 x 7.8 mm (5.48 x 2.79 x 0.31 in) 159.5 x 75.2 x 8.1 mm (6.28 x 2.96 x 0.32 in)
SIM Nano-SIM + Micro-SIM Nano-SIM + Nano-SIM
Weight 133 g (4.69 oz) 179 g (6.31 oz)
Comms
Bluetooth 4.1, A2DP 5.0, A2DP, LE
Infrared port Yes -
NFC No Yes
Positioning GPS, GLONASS, BDS GPS, GLONASS, GALILEO, BDS
Radio No FM radio
USB USB Type-C microUSB 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Resolution 1080 x 1920 pixels, 16:9 ratio (~441 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)
Size 5.0 inches, 68.9 cm2 (~69.9% screen-to-body ratio) 6.38 inches, 99.9 cm2 (~83.3% screen-to-body ratio)
Type IPS LCD Super AMOLED
Features
Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2016, February. Released 2016, March 2019, August. Released 2019, August
Status Discontinued Discontinued
Main Camera
Features Dual-LED dual-tone flash, panorama, HDR LED flash, HDR, panorama
Single 13 MP, f/2.0, PDAF -
Triple - 16 MP, f/1.8, (wide), 1/2.8", 1.12µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth)
Video 1080p@30fps, 720p@120fps 1080p@30fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (dedicated slot)
Internal 64GB 3GB RAM 128GB 6GB RAM
  eMMC 5.0 eMMC 5.1
Misc
Colors Black, White, Gold, Pink Black brilliant, Blue Pearl
Network
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 1900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 7, 38, 39, 40, 41 1, 3, 5, 7, 8, 20, 38, 40, 41
Speed HSPA, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/150 Mbps
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE
  TD-SCDMA -
Our Tests
Audio quality Noise -94.9dB / Crosstalk -82.6dB -
Battery (old) Endurance rating 75h -
Camera Photo / Video -
Display Contrast ratio: 975:1 (nominal), 2.095 (sunlight) -
Loudspeaker Voice 73dB / Noise 68dB / Ring 82dB -
Performance Basemark OS II 2.0: 1545Basemark X: 12990 -
Platform
Chipset Qualcomm MSM8992 Snapdragon 808 (20 nm) Mediatek MT6768 Helio P65 (12 nm)
CPU Hexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A57) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.7 GHz Cortex-A55)
GPU Adreno 418 Mali-G52 MC2
OS Android 5.1 (Lollipop), upgradable to 7.0 (Nougat), MIUI 10 Android 9.0 (Pie), Funtouch 9
Selfie camera
Features - HDR
Single 5 MP, f/2.0 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes