Compare Vivo S1 vs vivo V15

Specifications
Key Specifications
Display Size 6.53 inches 6.53 inches
Operating System Funtouch 9.0 OS (Android 9.0 Pie); Android 9.0 (Pie); Funtouch 9
RAM 4 GB RAM or 6 GB RAM 6 GB RAM
Rear Camera 12 MP 12 MP
Battery Capacity Fast charging,Non-removable Li-Ion 3940 mAh Non-removable Li-Po 4000 mAh battery
General Features
Release Date 2019, May 2019, March
SIM Support Nano-SIM , Dual Sim Dual SIM (Nano-SIM, dual stand-by)
Phone Dimensions 6.38 x 2.99 x 0.34 in 6.35 x 2.99 x 0.33 in
Phone Weight 189 g 189.5 g
Operating System Funtouch 9.0 OS (Android 9.0 Pie); Android 9.0 (Pie); Funtouch 9
Display
Screen Size 6.53 inches 6.53 inches
Screen Resolution 1080 x 2340 pixels 1080 x 2340 pixels
Screen Type IPS Capacitive, Multi-touch IPS LCD capacitive touchscreen, 16M colors
Screen Protection Capacitive, Multi-touch, Scratch resistant Corning Gorilla Glass 5
Memory
Internal Memory 128/256 GB 64/128 GB
RAM 4 GB RAM or 6 GB RAM 6 GB RAM
Card Slot microSD, microSDHC, microSDXC microSD, up to 256 GB
Performance
Processor 4x 2.1 GHz ARM Cortex-A73, 4x 1.95 GHz ARM Cortex-A53 Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU ARM Mali-G72 MP3 Mali-G72 MP3
Battery
Type Fast charging,Non-removable Li-Ion 3940 mAh Non-removable Li-Po 4000 mAh battery
Camera
Front Camera 24 MP Motorized
Front Flash Light No No
Front Video Recording 2 MP 1080p@30fps
Back Flash Light Yes Yes
Back Camera 12 MP 12 MP
Back Video Recording 0 MP 2160p@30fps, 1080p@30fps
Connectivity
Bluetooth Yes Yes
3G Yes Yes
4G/LTE Yes Yes
Radio Yes FM radio
WiFi Yes Yes
NFC No No