Samsung Galaxy F15 5G vs Galaxy S21 5G

Specs compared side by side, measured on real phones shared by owners with the Device Info app.

Samsung Galaxy F15 5GSamsung Galaxy F15 5GDimensity 6100+Change
Samsung Galaxy S21 5GSamsung Galaxy S21 5GExynos 2100Change

Key differences

  1. Chipset: the Galaxy F15 5G uses the Dimensity 6100+ (6 nm TSMC N6), the Galaxy S21 5G the Exynos 2100 (5 nm Samsung). The Galaxy F15 5G's fastest core runs at 2.20 GHz, the Galaxy S21 5G's at 2.91 GHz.
  2. Screen: 6.5 inches on the Galaxy F15 5G, 6.2 inches on the Galaxy S21 5G. Up to 90 Hz on the Galaxy F15 5G, 120 Hz on the Galaxy S21 5G.
  3. Battery: 5,880 mAh on the Galaxy F15 5G, 3,880 mAh on the Galaxy S21 5G.
  4. Main camera: 12.5 MP on the Galaxy F15 5G, 12.2 MP on the Galaxy S21 5G.

The same on both: Widevine L1.

Chipset

Chipset
Dimensity 6100+Exynos 2100
Process
6 nm TSMC N65 nm Samsung
CPU
2× 2.20 GHz Cortex-A76
6× 2.00 GHz Cortex-A551× 2.91 GHz Cortex-X1
3× 2.81 GHz Cortex-A78
4× 2.21 GHz Cortex-A55
Top CPU speed
2.20 GHz2.91 GHz
CPU cores
88
GPU
Mali-G57 MC2Mali-G78

Memory

Versions seen
4GB | 128GB8GB | 128GB
RAM type
LPDDR4XLPDDR5

Display

Size
6.5 in6.2 in
Resolution
1080 × 23401080 × 2400
Pixel density
399 ppi423 ppi
Refresh rates
90 Hz120 Hzalso 48, 60, 96
HDR
—HDR10, HDR10+, HLG

Battery

Capacity
5,880 mAh3,880 mAh

Cameras

Back camera 1
12.5 MP4080 × 3060 · f/1.8 · 3.98 mm12.2 MP4032 × 3024 · f/1.8 · 5.4 mm · OIS
Back camera 2
5 MP2576 × 1932 · f/2.2 · 1.4 mm12.2 MP4032 × 3024 · f/2.2 · 2.2 mm
Front camera 1
12.8 MP4128 × 3096 · f/2 · 3.56 mm10 MP3648 × 2736 · f/2.2 · 3.3 mm
Front camera 2
9.5 MP3712 × 2556 · f/2 · 3.56 mm7.1 MP3216 × 2208 · f/2.2 · 3.3 mm

Megapixels are what Android reports to apps. Many phones combine pixels by default, so the advertised megapixels can be higher.

Connectivity

Wi-Fi
—Wi-Fi 6
6 GHz Wi-Fi
NoNo
Bluetooth LE Audio
NoNo
NFC
NoYes
UWB
NoNo
USB host
YesYes

Software

Android
Android 16Android 15
UI
One UI 8.5One UI 7.0
Released with
Android 14Android 11
Widevine DRM
L1L1

Sensors

Sensors
32 sensors44 sensors
Galaxy F15 5G full specs Galaxy S21 5G full specs

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From phones shared with the Device Info app · updated October 2026 Hardware specs only. No personal data. Privacy