Samsung Galaxy S25 EdgevsSamsung Galaxy S21 Ultra

Samsung Galaxy S25 Edge
#58
Processor:Qualcomm Snapdragon 8 Elite
RAM:12 GBGB
Storage:256 GBGB

Quick Stats

Samsung Galaxy S25 Edge's 3900 mAh battery with 25W fast charging ensures all-day use and reverse charging capabilities.
Samsung Galaxy S25 Edge features a 6.7-inch AMOLED display with 2600 cd/m² brightness, 120Hz adaptive refresh rate, HDR10+, and Corning Gorilla Glass Victus 2 for vibrant, durable visuals.
Samsung Galaxy S25 Edge's 200 MP main camera with 8K video, Night Mode 2.0, and optical stabilization delivers pro-grade photography.
Snapdragon 8 Elite (3 nm) with 12 GB RAM and Adreno 830 GPU delivers powerful performance, but thermal throttling may occur under heavy loads.
Samsung Galaxy S21 Ultra
#53
Winner
Processor:Samsung Exynos 2100
RAM:12 GBGB
Storage:128 GBGB

Quick Stats

The S21 Ultra's 5000mAh battery with 25W fast charging and adaptive display ensures all-day endurance.
The S21 Ultra's 120Hz adaptive display with HDR10+ and 1500 nits brightness delivers immersive, vibrant visuals.
The S21 Ultra’s 108MP main lens, 3x/10x optical zoom, and 8K video deliver pro-level photo and video capabilities.
The S21 Ultra's Exynos 2100 processor and 12GB RAM ensure smooth multitasking and lag-free performance for demanding apps and gaming.
Specifications Comparison
Specification
Samsung Samsung Galaxy S25 Edge
Samsung Samsung Galaxy S21 Ultra
Model
Qualcomm Snapdragon 8 Elite
Samsung Exynos 2100
CPU
2x4.32 GHz Oryon V2 Phoenix L+ 6x3.53 GHz Oryon V2 Phoenix M
1x Cortex, X1 2,91 GHz + 3x Cortex, A78 2,81 GHz + 4x Cortex, A55 2,21 GHz.
Type
Octa-Core
Octa-Core
Nanometer
3 nm
5 nm
Frequency
4,3 GHz
2,9 GHz
64 Bits
Yes
Yes
GPU
Adreno 830
ARM Mali-G78 MP14
RAM
12 GB
12 GB
Type
RAM LPDDR5X
RAM LPDDR5
Capacity
256 GB
128 GB
Type
UFS Storage 4.0
UFS Storage 3.1
SD slot
No
No
Fingerprint security
Yes, in screen
Yes, in screen
Fingerprint sensor
Yes
Yes
Proximity sensor
Yes
Yes
Light sensor
Yes
Yes
Accelerometer sensor
Yes
Yes
Compass sensor
N/A
Yes
Gyroscope sensor
Yes
Yes
Barometer sensor
Yes
Yes
Hall sensor
Yes
Yes
Geomagnetic sensor
Yes
Yes
Audio
Noise cancellation microphone, Stereo Speakers, 2 microphones
Dolby Atmos, Hi-Res Audio, Noise cancellation microphone, Stereo Speakers
Antutu Score
2265528
749000
Antutu Version
Antutu v10
Antutu v10
Antutu Standing
Overall performance better than 97% of devices
Overall performance better than 80% of devices
Cooling system
Yes
No
Gaming buttons
No
No
Extras
N/A
N/A

Note: Highlighted specifications show differences between the two devices.

Rankings
Connectivity
Samsung Galaxy S25 Edge
#673
Samsung Galaxy S21 Ultra
#221
Winner
Design
Samsung Galaxy S25 Edge
#13
Winner
Samsung Galaxy S21 Ultra
#100
Display
Samsung Galaxy S25 Edge
#396
Samsung Galaxy S21 Ultra
#4
Winner
Performance
Samsung Galaxy S25 Edge
#54
Winner
Samsung Galaxy S21 Ultra
#422
Battery
Samsung Galaxy S25 Edge
#854
Samsung Galaxy S21 Ultra
#622
Winner
Camera
Samsung Galaxy S25 Edge
#140
Samsung Galaxy S21 Ultra
#9
Winner

Note: Lower rank number indicates a better position in category.

Key Differences

No significant specification differences found between these devices.

Scores by Category
Pros and Cons

Samsung Galaxy S25 Edge

Strengths

Stunning 6.7-inch AMOLED display with 2600 cd/m² brightness, 120Hz adaptive refresh rate, and HDR10+ for vibrant, immersive visuals.
Flagship 200 MP main camera with Night Mode 2.0, 8K video, and optical stabilization for professional-grade photography.
Powerful Snapdragon 8 Elite (3 nm) processor with 12 GB RAM and UFS 4.0 storage for seamless multitasking and gaming.
Premium build with Corning Gorilla Glass Victus 2, IP68 water/dust resistance, and ultra-thin 5.8 mm profile.
Advanced AI features (One UI 7), 7-year security updates, and 5G/Wi-Fi 7 connectivity for future-proof performance.

Weaknesses

3900 mAh battery may struggle with heavy use, requiring frequent charging despite 25W fast charging.
Premium price point (€1,259+) may deter budget-conscious buyers despite flagship specs.
No expandable storage (UFS 4.0 only), limiting flexibility for media-heavy users.
Thermal throttling observed under prolonged high-load scenarios (e.g., gaming, video editing).

Samsung Galaxy S21 Ultra

Strengths

Exceptional 120Hz adaptive display with HDR10+ and 1500 nits brightness for vibrant visuals.
Advanced quad-camera system with 108MP main lens, 3x/10x optical zoom, and 8K video recording.
Premium build with IP68 water resistance, Gorilla Glass Victus, and a sleek frameless design.
Powerful Exynos 2100 processor and Mali-G78 GPU for smooth multitasking and gaming.

Weaknesses

No expandable storage via SD card slot.
No bundled charger (25W fast charging requires purchase separately).
High price for a flagship device with non-removable battery.
Non-removable battery limits upgrade or replacement options.
Lacks periscope-style ultra-zoom compared to later flagships.
Read Full Reviews

Samsung Galaxy S25 Edge

Samsung Galaxy S25 Edge blends sleek, durable design with a vibrant edge-to-edge display, powerful performance, and advanced dual-camera system. Experience smart AI features, all-day battery, and seamless connectivity in a thin, lightweight flagship.

Samsung Galaxy S21 Ultra

Experience the pinnacle of innovation with the Samsung Galaxy S21 Ultra. Its sleek, premium design merges a vibrant adaptive display with a powerful camera system, delivering breathtaking visuals and pro-level photography in a durable, edge-to-edge masterpiece.

Need help choosing?

Read our detailed reviews to understand which device is better for your specific needs and budget.

Read Samsung Galaxy S25 Edge ReviewRead Samsung Galaxy S21 Ultra Review

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