Product
Vivo iQOO Z6 Pro
Vivo iQOO Z6 Pro
Samsung Galaxy M55s
Samsung Galaxy M55s
Battery
Charging 66W wired, 50% in 18 min 45W wired
Type 4700 mAh 5000 mAh
Body
Build Glass front, plastic frame, plastic back -
Dimensions 159.7 x 73.6 x 8.5 mm (6.29 x 2.90 x 0.33 in) 163.9 x 76.5 x 7.8 mm (6.45 x 3.01 x 0.31 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 180 g (6.35 oz) 180 g (6.35 oz)
Comms
Bluetooth 5.2, A2DP, LE 5.2, A2DP, LE
NFC No Yes
Positioning GPS, GLONASS, GALILEO, BDS GPS, GALILEO, GLONASS, BDS, QZSS
Radio No No
USB USB Type-C 2.0, OTG USB Type-C 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Display
Protection Panda Glass -
Resolution 1080 x 2404 pixels, 20:9 ratio (~409 ppi density) 1080 x 2400 pixels, 20:9 ratio (~393 ppi density)
Size 6.44 inches, 100.0 cm2 (~85.1% screen-to-body ratio) 6.7 inches, 108.4 cm2 (~86.4% screen-to-body ratio)
Type AMOLED, 90Hz, HDR10+, 1300 nits (peak) Super AMOLED+, 120Hz, 1000 nits (HBM)
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Launch
Announced 2022, April 27 2024, September 24
Status Available. Released 2022, May 03 Available. Released 2024, September 26
Main Camera
Features Dual-LED dual-tone flash, HDR, panorama LED flash, panorama, HDR
Triple 64 MP, f/1.8, 26mm (wide), PDAF 8 MP, f/2.2, 117˚ (ultrawide) 2 MP, f/2.4, (macro) 50 MP, f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 123˚ (ultrawide) 2 MP, f/2.4, (macro)
Video 4K@30fps, 1080p@30/60fps, gyro-EIS 4K@30fps, 1080p@30/60fps, gyro-EIS, OIS
Memory
Card slot No microSDXC (uses shared SIM slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM, 256GB 12GB RAM 128GB 8GB RAM, 256GB 8GB RAM
Misc
Colors Phantom Dusk, Legion Sky Thunder Black, Coral Green
Models - SM-M558B, SM-M558B/DS
SAR - 0.93 W/kg (head)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands 1, 3, 5, 8, 38, 40, 41 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 38, 40, 41, 66
5G bands 1, 3, 5, 8, 41, 77, 78 SA/NSA 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6
Speed HSPA, LTE, 5G HSPA, LTE, 5G
Technology GSM / HSPA / LTE / 5G GSM / HSPA / LTE / 5G
Platform
Chipset Qualcomm SM7325 Snapdragon 778G 5G (6 nm) Qualcomm SM7450-AB Snapdragon 7 Gen 1 (4 nm)
CPU Octa-core (1x2.4 GHz Cortex-A78 & 3x2.2 GHz Cortex-A78 & 4x1.9 GHz Cortex-A55) Octa-core (1x2.4 GHz Cortex-A710 & 3x2.36 GHz Cortex-A710 & 4x1.8 GHz Cortex-A510)
GPU Adreno 642L Adreno 644
OS Android 12, Funtouch 12 Android 14, up to 4 major Android upgrades, One UI 6.1
Selfie camera
Single 16 MP, f/2.0, (wide) 50 MP, f/2.4, (wide)
Video 1080p@30fps 4K@30fps, 1080p@30/60fps
Sound
3.5mm jack No No
Loudspeaker Yes Yes, with stereo speakers
  24-bit/192kHz Hi-Res audio -