Samsung Galaxy S21 Ultra vs Xiaomi Redmi Note 15 Pro Plus (12GB RAM + 256GB)

Overview

Specs Score77 / 10080 / 100
Better Specs
Display Resolution1440 x 3200 pixels
Better Resolution
1280 x 2772 pixels
CPU Clock Speed2.9 GHz
Faster Clock Speed
2.7 GHz
Rear Camera108 MP Quad200 MP + 8 MP Dual
Better Camera Resolution
Front Camera40 MP
Better Front Camera Resolution
32 MP
Weight227 g207 g
Lighter
Thickness8.9 mm8.2 mm
Slimmer
Battery5000 mAh6500 mAh
Bigger Battery
Unique Features
Wireless Charging
No
No
IR Blaster

General

Country of OriginIndia
ModelGalaxy S21 Ultra 5G2510ERA8BG
Sim TypeDual Sim, GSM+GSMDual Sim, GSM+GSM
Dual SimYesYes
Sim SizeNano+Nano SIMnano SIM + nano SIM or nano SIM + eSIM
Device TypeSmartphoneSmartphone
OS Updates4 years
Security Updates6 years
Release DateJanuary 14, 2021December 18, 2025
In The BoxREDMI Note 15 Pro+ 5G/ Adapter/ USB Type-C Cable/ SIM Eject Tool/ Protective Case/ Quick Start Guide/ Warranty Card

Design

Dimensions75.6 x 165.1 x 8.9 mm78.3 x 163.3 x 8.2 mm
Weight227 g207 g
ColorsMirage Blue, Coffee Mocha, Carbon Black

Display

TypeColor Dynamic AMOLED 2X (16M Colors)Color AMOLED Screen (1B Colors)
TouchYesYes
Size6.8 inches, 1440 x 3200 pixels, 120 Hz6.83 inches, 1280 x 2772 pixels, 120 Hz
Aspect Ratio20:920.1:9
PPI~ 515 PPI~ 447 PPI
Screen to Body Ratio~ 89.8%~ 89.6%
Glass TypeCorning Gorilla Glass VictusCorning Gorilla Glass Victus 2
Brightness3200 nits Peak, HBM 1800 nits
HDR SupportYes, HDR10+Yes, HDR10+, Dolby Vision
FeaturesAlways-on Display, HDR10+, Curved Display3840Hz PWM, HDR10+, Dolby Vision, Colour depth: 12bit Contrast ratio: 8,000,000:1 DCI- P3 wide color gamut
NotchYes, Punch HoleYes, Punch Hole
Curved DisplayYes

Memory

RAM12 GB12 GB
Storage256 GB256 GB
Storage TypeUFS 3.1UFS 2.2
Card SlotNo

Connectivity

GPRSYesYes
EDGEYesYes
3GYesYes
4GYesYes
5GYesYes
5G BandsSA: n1/3/5/8/28/38/40/41/77/78, NSA: n1/3/5/8/28/40/41/77/78
VoLTEYes, Dual Stand-ByYes, Dual Stand-By
WifiYes, with wifi-hotspotYes, with wifi-hotspot
Wifi VersionWi-Fi: Wi-Fi 6/6E/Wi-Fi 5/Wi-Fi 4/Wi-Fi Direct Supports 2.4GHz Wi-Fi | 5GHz Wi-Fi Supports 2x2 MIMO
BluetoothYes, v5.2, A2DP, LEYes, v5.4, A2DP, LE
USBYes, USB-C v3.2Yes, USB-C v2.0
USB FeaturesUSB on-the-go, USB ChargingUSB on-the-go, USB Charging
IR BlasterYes

Performance

AnTuTu Score1,053,798 (Total) (v11)
405,501 (CPU)
188,358 (GPU)
203,399 (Memory)
256,540 (UX)
AnTuTu Storage Score85,008
Sequential Read: 1093 MB/s; Sequential Write: 1054 MB/s
Geekbench Score3,250 (Multi Core) (v6)
1,250 (Single Core)
3,538 (OpenCL)
4,690 (Vulkan)
3DMark Score1,104 (Wild Life Extreme) (6.61 FPS)

Extra

GPSYes, with A-GPS, GLONASS, BDS, GALILEOGPS | AGPS | Glonass | Beidou | Galileo make wireless Down Wireless network | Data network | Sensor Assisted Positioning
Fingerprint SensorYes, In DisplayYes, In Display
Face UnlockYesYes
SensorsAccelerometer, Gyro, Proximity, Compass, BarometerProximity sensor | Ambient light sensor | Accelerometer | Electronic compass | IR blaster | Gyroscope
3.5mm Headphone JackNoNo
NFCYesYes
AI FeaturesAl Writing, Al Speech Recognition, Al Interpreter,Al Search, Al Dynamic Wallpapers, Al Creativity Assistant,and more. Circle to Search with Google, Google Gemini information.
Water ResistanceYes, 1.5 m upto 30 minYes, 1.5 m upto 30 min
IP RatingIP68IP66 + IP68 + IP69 + IP69K
Dust ResistantYesYes
Extra FeaturesXiaomi T1S Tuner, Xiaomi Offline Communication

Camera

Rear Camera108 MP ƒ/1.8
10 MP ƒ/4.9 (Telephoto)
10 MP ƒ/2.4 (Telephoto)
12 MP ƒ/2.2 (Ultra Wide)
200 MP ƒ/1.7 (Wide Angle)
23mm (wide), 1/1.4", 0.56µm, multi-directional PDAF, OIS
8 MP ƒ/2.2 (Ultra Wide)
15mm, 120˚ (ultrawide), 1/4.0", 1.12µm
OISYesYes
Auto FocusYesYes
FeaturesAuto-HDR, Panorama
Video Recording8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD4K @ 30 fps UHD, 1080p @ 60 fps FHD
FlashYes, LEDYes, LED
Front Camera40 MP ƒ/2.2 (Wide Angle)
Punch Hole, Autofocus
32 MP ƒ/2.2 (Wide Angle)
Punch Hole
Front Video Recording4K @ 30/60 fps UHD, 1080p @ 30 fps FHD1080p @ 60 fps FHD

Technical

OSAndroid v10Android v15
Custom UIXiaomi HyperOS 2
ChipsetSamsung Exynos 2100Qualcomm Snapdragon 7s Gen4
CPU2.9 GHz, Octa Core Processor2.7 GHz, Octa Core Processor
Core Details1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A551x2.7 GHz Cortex-A720 & 3x2.4 GHz Cortex-A720 & 4x1.8 GHz Cortex-A520
GPUMali-G78 MP14Adreno 810
JavaNoNo
BrowserYesYes, supports HTML5

Multimedia

EmailYesYes
MusicYesMP3, AMR, FLAC, APE
VideoYesMP4, M4V, MKV, XVID
FM RadioNoNo
Speaker TypeDual Stereo
Audio Features400% Volume Boost, Dolby Atmos | Hi-Res
Document ReaderYesYes

Battery

TypeNon-Removable BatteryNon-Removable Battery
Size5000 mAh, Li-Po Battery6500 mAh, Silicon-Carbon Battery Battery
Fast ChargingYes, 25W Fast ChargingYes, 100W Fast Charging
Wireless ChargingYes, 15W
Reverse ChargingYes, 4.5WYes, 22.5W

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