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Samsung Galaxy S21 Ultra 5G vs Samsung Galaxy S25 Plus

Samsung Galaxy S21 Ultra 5G

$989

90% SPEC SCORE

Samsung Galaxy S25 Plus

$999

87% SPEC SCORE

Tesla Pi Phone

$838

85% SPEC SCORE

Tecno Phantom V2 Fold

$1,077

86% SPEC SCORE

OVERVIEW

Display

Screen Size: 6.8 inches

(1440 X 3200 pixels)

120 Refresh rate

Screen Size: 6.7 inches

(1440 X 3120 pixels)

120 Refresh rate

Camera

108+10+10+12 MP (Quad Camera)

40 MP Selfie

8K Video

50+10+12 MP (Triple Camera)

12 MP Selfie

8K Video

Hardware

Exynos 2100 (5 nm) - International

Qualcomm Snapdragon 8 Elite

Android 11

One UI 6

Android 15

One UI 7

Battery

Li-Ion

5000 mAh

Li-Ion

4900 mAh

Storage

12GB RAM, 128GB

12GB RAM, 256GB

NETWORK

Technology

GSM / CDMA / HSPA / EVDO / LTE / 5G

LAUNCH DATE

Announced Date

2021, January 14

2025, January 22

Released Date

2021, January 29

2025, February 03

Status

Available

DISPLAY

Type

Dynamic AMOLED 2X, HDR10+, 1500 nits (peak)

Dynamic LTPO AMOLED 2X, HDR10+, 2600 nits (peak)

Refresh Rate

120 Hz

Size

Screen Size: 6.8

Surface Area: 112.1 cm²

Screen To Body Ratio: 89.8%

Screen Size: 6.7

Surface Area: 110.2 cm²

Screen To Body Ratio: 91.8%

Color

1B Colors

Resolution

1440 x 3200 pixels, 20:9 ratio

1440 x 3120 pixels, 19.5:9 ratio

Pixel Density

515 ppi

513 ppi

Protection

Front Protection: Corning Gorilla Glass Victus

Front Protection: Corning Gorilla Glass Victus 2

Always on Display

Yes

BODY

Dimensions

Height: 165.1 mm (6.5 inch)

Width: 75.6 mm (2.98 inch)

Depth: 8.9 mm (0.35 inch)

Height: 158.4 mm (6.24 inch)

Width: 75.8 mm (2.98 inch)

Depth: 7.3 mm (0.29 inch)

Weight

227g (8.01 oz)

190g (6.7 oz)

Build

Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame

Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame

SIM

Nano-SIM and eSIM or Dual SIM (2 Nano-SIMs and eSIM, dual stand-by)

Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)

Resistance

IP68 dust/water resistant (up to 1.5m for 30 min)

IP68 dust/water resistant

Other

Stylus support

MAIN CAMERA

Rear Camera

Quad Camera:

➤ 108 MP, f/1.8, 24mm (wide), 1/1.33", 0.8µm, PDAF, Laser AF, OIS
➤ 10 MP, f/4.9, 240mm (periscope telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 10x optical zoom
➤ 10 MP, f/2.4, 72mm (telephoto), 1/3.24", 1.22µm, dual pixel PDAF, OIS, 3x optical zoom
➤ 12 MP, f/2.2, 13mm (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF, Super Steady video

Triple Camera:

➤ 50 MP, f/1.8 , 24mm (wide), 1.0µm, 1/1.56", dual pixel PDAF, OIS
➤ 10 MP, f/2.4, 67mm (telephoto), 1.0µm, 1/3.94", PDAF, OIS, 3x optical zoom
➤ 12 MP, f/2.2 , 13mm, 120˚ (ultrawide), 1/2.55", 1.4µm, AF, Super Steady video

Features

LED flash, auto-HDR, panorama

Best Face, LED flash, auto-HDR, panorama

Video

8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS

8K@24/30fps, 4K@30/60fps, 1080p@30/60/240fps

SELFIE CAMERA

Single

40 MP, f/2.2, 26mm (wide), 1/2.8", 0.7µm, PDAF

12 MP, f/2.2, 26mm (wide), 1.12µm, 1/3.2", dual pixel PDAF

Features

Dual video call, Auto-HDR

HDR, HDR10+

Video

4K@30/60fps, 1080p@30fps

SOFTWARE & HARDWARE

Current Version: Android 11

Upgradable To: Android 14

Custom UI: One UI 6

Current Version: Android 15

Custom UI: One UI 7

Chipset

Processor: Exynos 2100 (5 nm) - International

Processor: Qualcomm Snapdragon 8 Elite

CPU

Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International

Octa-core 2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M

GPU

Mali G78 MP14 - International

Adreno 830 GPU

BATTERY

Type

Li-Ion

Capacity

5000 mAh

4900 mAh

Removable

Charging

25W wired PD3.0

15W wireless (Qi/PMA)

4.5W reverse wireless

45W wiredPD3.065% in 30 min

15W Wireless Charging

4W Reverse Charging

STORAGE

Internal Memory

128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM

256GB 12GB RAM, 512GB 12GB RAM

Card slot

Storage Type

UFS 3.1

UFS 4.0

CONNECTIVITY

WLAN

Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct

Wi-Fi 802.11 a/b/g/n/ac/6e/7, Wi-Fi Direct, tri-band

Bluetooth

5.2, LE, A2DP

v5.4, LE, A2DP

Positioning

GPS, GLONASS, BDS, GALILEO

GPS, Glonass, BDS, Galileo, QZSS

NFC

Yes

Radio

Yes

USB

USB Type-C 3.2, OTG

USB-C v3.2, DisplayPort 1.2

Infrared port

SOUND

Loudspeaker

Yes, with stereo speakers

Yes, stereo speakers

Sound jack

Other

32-bit/384kHz audio, Tuned by AKG

32-bit/384kHz audio Tuned by AKG

PERFORMANCE

AnTuTu Score

657150 v8

GeekBench

3518 v5.1

GFXBench

33fps ES 3.1 onscreen

SENSORS

Features

Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer

Other

Samsung DeX, Samsung Wireless DeX (desktop experience support), Ultra Wideband (UWB) support

Samsung DeX, Samsung Wireless DeX (desktop experience support), Ultra Wideband (UWB) support, Circle to Search

MISCELLANEOUS

Colors

Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy

Icy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red, Blue Black

Models

SM-G998B, SM-G998B/DS, SM-G998U, SM-G998U1, SM-G998W, SM-G998N, SM-G9980

SAR

0.77 W/kg (head) 1.02 W/kg (body)

1.16 W/kg 0.81 W/kg

SAR EU

0.71 W/kg (head) 1.58 W/kg (body)

1.26 W/kg 1.26 W/kg

Which Mobile Phone is Better: Samsung Galaxy S21 Ultra 5G or Samsung Galaxy S25 Plus ?

Have a look at the benefits of this Samsung Galaxy S21 Ultra 5G and Samsung Galaxy S25 Plus given by our tech specs.

Pros of Samsung Galaxy S21 Ultra 5G

Supports 2% higher battery capacity (5000mAh vs 4900mAh), offering longer usage without frequent recharging.
Offers a 1% larger screen (6.8 inches vs 6.7 inches), ideal for media consumption and gaming.
Supports 2x higher resolution (108MP vs 50MP), offering incredible photo clarity and detail.
Supports higher RAM capacity compare to Samsung Galaxy S25 Plus, enabling faster switching between apps and better performance in demanding applications