Samsung
Samsung Galaxy S21 Ultra
The 2021 kitchen-sink flagship: dual telephotos including a 10x periscope, a 1500-nit LTPO panel, and first S Pen support outside the Note line. The used market still treats it as the cheap way into real zoom.
Pros
- 10x optical periscope still beats most 2026 phones
- Gorgeous 1500-nit LTPO WQHD+ panel
- S Pen support
- Strong used value
Cons
- Exynos 2100 ran warmer than the Snapdragon twin
- 25W charging
- 227g heft
Average
Computed from specs & benchmarks via our public methodology.
Full specifications
Everything we track for the Samsung Galaxy S21 Ultra
Display
- Screen size
- 6.8 ″
- Panel type
- LTPO AMOLED
- Resolution
- 3200x1440
- Pixel density
- 515 ppi
- Refresh rate
- 120 Hz
- Peak brightness
- 1,500 nits
- AnTuTu 10 (CPU)
- 263,424Top 88%
- AnTuTu 10 (GPU)
- 126,989Top 82%
- AnTuTu 10 (Memory)
- 165,563Top 72%
- AnTuTu 10 (UX)
- 227,841Top 82%
Performance
- Chipset
- Samsung Exynos 2100
- AnTuTu 10
- 783,817Top 65%
- Geekbench 6 (single)
- 1,430Top 52%
- Geekbench 6 (multi)
- 3,550Top 56%
- RAM (max)
- 12 GB
- Storage options
- 128GB / 256GB / 512GB
- Storage type
- UFS 3.1
Camera
- Main camera
- 108 MP
- Main aperture
- f/1.8
- Ultra-wide
- 12 MP
- Telephoto
- 10 MP
- Optical zoom
- 10 x
- Max video
- 8K@24fps
- Front camera
- 40 MP
- OIS
- Yes
Battery
- Capacity
- 5,000 mAh
- Wired charging
- 25 W
- Wireless charging
- 15 W
Design
- Weight
- 228 g
- Thickness
- 8.9 mm
- IP rating
- IP68
- Frame material
- Aluminum
Connectivity
- 5G
- Yes
- Wi-Fi
- Wi-Fi 6E
- Bluetooth
- 5.2
- NFC
- Yes
- USB
- USB-C 3.2
- eSIM
- Yes
Software
- OS at launch
- Android 11 (One UI 3.1)
- OS update pledge
- 4 years
Audio
- Stereo speakers
- Yes
- 3.5mm jack
- No
Quick answers
Is the Samsung Galaxy S21 Ultra good in 2026?
The Samsung Galaxy S21 Ultra earns an Inno Score of 53.9/100 (“Average”) based on its specs and benchmark results. The 2021 kitchen-sink flagship: dual telephotos including a 10x periscope, a 1500-nit LTPO panel, and first S Pen support outside the Note line. The used market still treats it as the cheap way into real zoom.
What is the Samsung Galaxy S21 Ultra AnTuTu score?
The Samsung Galaxy S21 Ultra scores 783,817 points in AnTuTu 10 (CPU 263,424, GPU 126,989, Memory 165,563, UX 227,841). That puts it in the top 65% of the chips and devices we have measured in this category. In Geekbench 6 it reaches 1,430 single-core and 3,550 multi-core.
What are the key specs of the Samsung Galaxy S21 Ultra?
Chipset: Samsung Exynos 2100 · Screen size: 6.8 ″ · Capacity: 5,000 mAh · Main camera: 108 MP
What are the closest alternatives to the Samsung Galaxy S21 Ultra?
Its closest rivals on InnoReviews are iPhone 16e, Google Pixel 9a, Honor 400 — open the comparison pages for a spec-by-spec breakdown.
