Realme C25Y vs vivo X100

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100
4G network

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41
5G network

-

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE, 301 Mbps download, 151 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front, plastic back, plastic frame

Aluminium alloy, glass, faux leather
SIM

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

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

164.5 mm

164.1 mm
Width

76 mm

75.2 mm
Thickness

9.1 mm

8.5/8.8 mm
Weight

200 g

202/206 g
Waterproof

-

IP68 (1.5m and 30 mins)
Dust proof

-

IP68
Colors

Blue, Gray

Black, Blue, Orange

OS
OS

Android 11, Realme UI R

Android 14, Funtouch 14 (global), OriginOS 4 (China)

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 50 MP, f/1.8 , 26 mm, 4x digital zoom

(wide) , 50 MP, f/1.6 , 1/1.49"
(macro) , 2 MP, f/2.4

(periscope telephoto) , 64 MP, f/2.6 , 70 mm, 1/2.0" , 3x optical zoom
(depth) , 2 MP, f/2.4

(ultrawide) , 50 MP, f/2.0 , 119˚ , 15 mm, 1/2.76"
Primary camera resolution

-

8120 x 6180 pixels
Primary camera video

1080p@30fps

4K, 1080p, gyro-EIS, Cinematic mode (1080p)
Primary camera optics

-

Zeiss optics, Zeiss T* lens coating
Primary camera flash

LED flash

LED flash
Camera features

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

Autofocus, continuous shooting, digital zoom, optical 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, macro-mode, phase detection autofocus

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

-
WLAN WiFi Direct

-

Yes
WiFi Tri-Band

-

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.4
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
Infrared

-

Yes
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
BDS

Yes

Yes
QZSS

-

Yes
NavIC

-

Yes