Product
Vivo iQOO Z7s
Vivo iQOO Z7s
Samsung Galaxy M40
Samsung Galaxy M40
Battery
Charging 44W wired, 50% in 24 min 15W wired
Type 4500 mAh Li-Po 3500 mAh, non-removable
Body
Build - Glass front (Gorilla Glass 3), plastic back, plastic frame
Dimensions 158.9 x 73.5 x 7.8 mm (6.26 x 2.89 x 0.31 in) 155.3 x 73.9 x 7.9 mm (6.11 x 2.91 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 172 g (6.07 oz) 168 g (5.93 oz)
  IP54 dust protected and water resistant (water splashes) -
Comms
Bluetooth 5.1, A2DP, LE 5.0, A2DP, LE
NFC No Yes
Positioning GPS, GLONASS, GALILEO, BDS, QZSS GPS, GLONASS, GALILEO, BDS
Radio Unspecified FM radio
USB USB Type-C 2.0, OTG USB Type-C 2.0
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 Schott Xensation glass Corning Gorilla Glass 3
Resolution 1080 x 2400 pixels, 20:9 ratio (~413 ppi density) 1080 x 2340 pixels, 19.5:9 ratio (~409 ppi density)
Size 6.38 inches, 98.3 cm2 (~84.1% screen-to-body ratio) 6.3 inches, 97.4 cm2 (~84.9% screen-to-body ratio)
Type AMOLED, 90Hz, 1300 nits (peak) PLS LCD
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Launch
Announced 2023, May 22 2019, June
Status Available. Released 2023, May 22 Available. Released 2019, June
Main Camera
Dual 64 MP, (wide), 1/1.97", 0.7µm, PDAF, OIS 2 MP, f/2.4, (depth) -
Features LED flash, HDR, panorama LED flash, panorama, HDR
Triple - 32 MP, f/1.7, 26mm (wide), 1/2.8", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm, PDAF 5 MP, f/2.2, (depth)
Video 1080p@30fps 4K@30fps, 1080p@30fps
Memory
Card slot microSDXC (uses shared SIM slot) microSDXC (uses shared SIM slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM 64GB 4GB RAM, 128GB 6GB RAM
  UFS 2.2 eMMC 5.1
Misc
Colors Norway Blue, Pacific Night Seawater Blue, Midnight Blue, Cocktail Orange
Models I2223 SM-M405F, SM-M405FN, SM-M405G
SAR 1.15 W/kg (head)     0.84 W/kg (body)     0.20 W/kg (head)    
SAR EU - 0.27 W/kg (head)     1.17 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 1, 3, 5, 8, 40, 41
5G bands 1, 3, 8, 28, 77, 78 SA/NSA -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 400/50 Mbps
Technology GSM / HSPA / LTE / 5G GSM / HSPA / LTE
Platform
Chipset Qualcomm SM6375 Snapdragon 695 5G (6 nm) Qualcomm SDM675 Snapdragon 675 (11 nm)
CPU Octa-core (2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver) Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
GPU Adreno 619 Adreno 612
OS Android 13, Funtouch 13 Android 9.0 (Pie), upgradable to Android 11, One UI 3.1
Selfie camera
Features - HDR
Single 16 MP, f/2.0, (wide) 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes No
Loudspeaker Yes Yes