Realme V25 vs vivo S15

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 850, 900, 2100; CDMA2000 1x

HSDPA 850, 900, 1700(AWS), 2100; CDMA2000 1x
4G network

LTE frequency band 1, 3, 5, 8, 38, 40, 41

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 19, 28, 34, 38, 39, 40, 41
5G network

5G band SA/NSA

5G band 1, 3, 5, 8, 28, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

AG glass, plastic
SIM

Hybrid Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

164.3 mm

161.1 mm
Width

75.6 mm

74.3 mm
Thickness

8.5 mm

8 mm
Weight

195 g

197 g
Colors

Black, Blue, Green

Black, Blue, Yellow

Display
Display type

IPS LCD

AMOLED
Physical size

6.6 inches

6.62 inches
Resolution

1080 x 2412 pixels

1080 x 2400 pixels
Pixel density

400 ppi

398 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, 2.5D curved glass screen

Scratch resistant, 2.5D curved glass screen
Display features

-

120Hz, HDR10+, 1300 nits (peak)

Hardware
CPU

Octa-core

Octa-core
CPU

Dual-core 2.2 GHz Kryo 660 Gold

Single-core 3.2 GHz Kryo 585
CPU(second)

Hexa-core 1.7 GHz Kryo 660 Silver

Triple-core 2.42 GHz Kryo 585
CPU(third)

Quad-core 1.80 GHz Kryo 585
Chipset

Qualcomm SM6375 Snapdragon 695 5G

Qualcomm SM8250-AC Snapdragon 870 5G
GPU

Adreno 619

Adreno 650
Memory RAM

12 GB

8, 12 GB
Internal storage

256 GB

128, 256 GB
Memory card

microSD, microSDHC, microSDXC

No
Storage

-

UFS 3.1

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 64 MP, f/1.8 , 26 mm

(wide) , 64 MP, f/1.9 , 25 mm, 1/1.72"
(macro) , 2 MP, f/2.4

(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm
(depth) , 2 MP, f/2.4

(macro) , 2 MP, f/2.4
Primary camera resolution

9248 x 6944 pixels

9280 x 6920 pixels
Primary camera video

1080p@30fps

4K@30fps, 1080p@30fps
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus

Autofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 16 MP, f/2.1 , 26 mm, 1/3.09" , 1.0 µm

(wide) , 32 MP, f/2.0
Selfie camera resolution

4608 x 3456 pixels

-
Selfie camera features

Face unlock, HDR

Face unlock, autofocus, HDR, face detection, panorama, geotagging, digital image stabilization
Selfie camera video

1080p@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD, aptX Adaptive
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
BDS

Yes

Yes
QZSS

-

Yes