Realme C21Y vs realme P3 Ultra 5G

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

Realme C21YRealme C21YT610Change
realme P3 Ultra 5GDimensity 8350 UltraChange

Key differences

  1. Chipset: the Realme C21Y uses the T610 (12 nm), the realme P3 Ultra 5G the Dimensity 8350 Ultra (4 nm TSMC). The Realme C21Y's fastest core runs at 1.82 GHz, the realme P3 Ultra 5G's at 3.35 GHz.
  2. Screen: 6.5 inches on the Realme C21Y, 6.8 inches on the realme P3 Ultra 5G. Up to 60 Hz on the Realme C21Y, 120 Hz on the realme P3 Ultra 5G.
  3. Battery: 5,000 mAh on the Realme C21Y, 6,000 mAh on the realme P3 Ultra 5G.
  4. Main camera: 13 MP on the Realme C21Y, 12.6 MP on the realme P3 Ultra 5G.

Chipset

Chipset
T610Dimensity 8350 Ultra
Process
12 nm4 nm TSMC
CPU
2× 1.82 GHz Cortex-A75
6× 1.82 GHz Cortex-A551× 3.35 GHz Cortex-A715
3× 3.20 GHz Cortex-A715
4× 2.20 GHz Cortex-A510
Top CPU speed
1.82 GHz3.35 GHz
CPU cores
88
GPU
Mali-G52Mali-G615 MC6

Memory

Versions seen
4GB | 64GB8GB | 128GB
RAM type
—LPDDR5X
Storage type
—UFS 4.0

Display

Size
6.5 in6.8 in
Resolution
720 × 16001272 × 2800
Pixel density
269 ppi453 ppi
Refresh rates
60 Hz120 Hzalso 60, 90
HDR
—HDR10, HDR10+, HLG

Battery

Capacity
5,000 mAh6,000 mAh

Cameras

Back camera 1
13 MP4160 × 3120 · f/2.2 · 3.46 mm12.6 MP4096 × 3072 · f/1.8 · 5.59 mm · OIS
Back camera 2
—12.6 MP4096 × 3072 · f/1.8 · 5.59 mm · OIS
Back camera 3
—8 MP3264 × 2448 · f/2.2 · 1.68 mm
Front camera
5 MP2592 × 1944 · f/2.4 · 2.23 mm4 MP2304 × 1728 · f/2.4 · 3.06 mm

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

Connectivity

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

Software

Android
Android 11Android 16
Released with
Android 11Android 15
Widevine DRM
L3L1

Sensors

Sensors
69 sensors35 sensors
Realme C21Y full specs realme P3 Ultra 5G full specs

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