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Samsung Galaxy M21s vs Realme X7 Pro Ultra

Samsung Galaxy M21s SamsungGalaxy M21s
VS
Realme X7 Pro Ultra RealmeX7 Pro Ultra

The third device is shown on desktop screens only

General

Device Type
Smart Phone
Smart Phone
Device Name
—
Realme X7 Pro Ultra
Announced
November 2020
April 2021
Released
November 2020
April 2021
Colors
BlackBlue
BlackAurora

Design

Length
159.2 mm (6.27 in)
159.9 mm (6.30 in)
Width
75.1 mm (2.96 in)
73.4 mm (2.89 in)
Thickness
8.9 mm (0.35 in)
7.8 mm (0.31 in)
Weight
191 g (6.74 oz)
170 g (6.00 oz)
Materials
Glass front (Gorilla Glass 3)Plastic backPlastic frame
—

Network

2G Network
Yes
Yes
3G Network
Yes
Yes
4G Network
Yes
Yes
5G Network
—
Yes
GPRS
Yes
Yes
EDGE
Yes
Yes
SIM
Nano SIM
Nano SIM
Multi SIM
Dual SIM
Dual SIM
Speed
3G Up to 42 MB4G Up to 600 MB
3G Up to 42 MB4G Up to 1.2 GB5G Up to 4.7 GB

Display

Display Type
Super AMOLED
Super AMOLED
Size
6.4 Inches
6.55 Inches
Refresh Rate
—
90 Hz
Resolution
1080x2340 Pixels (FHD+)
1080x2400 Pixels (FHD+)
Screen Ratio
84.1%
88.3%
Aspect Ratio
19.5:9
20:9
Pixel Density
403 PPI
402 PPI
Brightness Level
420 Nits
1200 Nits
Display Protection
Corning Gorilla Glass 3
Corning Gorilla Glass 5
Features
Water Drop Notch
Hole-punch NotchEye Care Display
On both: Always-on Display, Dark Mode, Capacitive, Multi-touch, 16M Colors

Hardware

Chipset
Samsung Exynos 9611
Mediatek Dimensity 1000+
Manufacturing Technology
10 nm
7 nm
CPU Type
Octa-core
8 (Octa-core)
CPU
Octa-core:Quad-core 2.3 GHzQuad-core 1.7 GHz
4x2.6 GHz (Cortex-A77)4x2.0 GHz (Cortex-A55)
GPU
Mali-G72 MP3
Mali-G77 MC9
RAM (Memory)
4/6 GB4 GB (64 GB)6 GB (128 GB)
8/12 GB8 GB (128 GB)12 GB (256 GB)
Internal Storage
64/128 GB
128/256 GB
Storage Type
UFS 2.1
—
Ram Type
LPDDR4x
—
Card Slot
Yes - MicroSD
No

Software

OS
Android 10
Android 11
User Interface
One UI 2.5
Realme UI 2.0

Main camera

Camera Setup
—
Triple Camera
Resolution
—
64 MP + 8 MP + 2 MP
Camera
—
64 MP: Standard8 MP: Ultrawide2 MP: Macro
Triple
First Camera: 64 MP (Standard)Second Camera: 8 MP (Ultrawide)Third Camera: 5 MP (Depth)
—
Aperture Size
First Camera: F/1.8Second Camera: F/2.2Third Camera: F/2.4
F/1.8 (64 MP)F/2.3 (8 MP)F/2.4 (2 MP)
Sensor
—
Sony IMX686 (64 MP)Unknown (8 MP)Unknown (2 MP)
Stabilization
—
Electronic Stabilization (EIS)
Zoom
—
Digital Zoom
Slow Motion
—
FHD 1080P@120fps
Video
4K 2160P@30fpsFHD 1080P@30fpsSlow MotionElectronic Stabilization (EIS)
4K 2160P@30/60fpsFHD 1080P@30/60fps
Flash
Yes
Yes
More details (1)Camera Features
Camera Features
Digital Zoom
Night ModeAI Scene Detection
On both: Autofocus (AF), Portrait Mode, Pro Mode, Continuous shooting, Panorama, Exposure compensation, Face detection, Geotagging, HDR, ISO settings, Scene mode, Self-timer, Touch focus, White balance settings

Selfie Camera

Camera
32 MP
32 MP
Aperture Size
F/2.0
F/2.5
Video
FHD 1080P@30fps
FHD 1080P@30fps
Flash
No
No
More details (1)Camera Features
Camera Features
No extras
Night Mode
On both: Face Detection, Portrait Mode, Beauty Mode, Gesture Shot, HDR

Connectivity

Wi-Fi
a/b/g/n/ac
a/b/g/n/ac/6
On both: Wi-Fi 802.11, Dual-band, Wi-Fi Direct, Hotspot
Bluetooth
5.0
5.1
On both: A2DP, LE
Location
No extras
QZSS
On both: GPS, A-GPS, GLONASS, GALILEO, BDS
NFC
—
Yes
USB
USB Type-C 2.0
USB Type-C 2.0

Media

Loudspeaker
Yes
Yes
3.5mm jack
Yes
No
FM Radio
Yes - RDS & Recording
No24-bit/192kHz

Other specifications

Sensors
AccelerometerGyroscopeProximityCompass
Same on both
Lock Type
Fingerprint (Rear-mounted)
Fingerprint (Side-mounted)
On both: Facial Recognition, Pattern, PIN, Password
Box Contents
Power Adapter (15 W)Headphones
Power Adapter (65 W)Protective Case
On both: Device, USB Cable, SIM Eject Tool, Quick start guide

Charging and Battery

Fast Charging
15 W
Yes - 65 W (100% in 35 min)
Capacity
6000 mAh
4500 mAh

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Copyright © 2026 NXT Test. All Rights Reserved