Category Breakdown
Realme C21Y
vivo Y12a
Performance
67.865.6
Camera
29.919.1
Display
67.556.5
Battery
33.733.7
Build
67.967.9
Connectivity
48.052.7
Audio
8.98.9
Overall
46.142.0
Summary
- The Realme C21Y and vivo Y12a both feature a similar build quality with glass fronts and plastic backs, but the C21Y is slightly heavier at 200g compared to the Y12a's 191g.
- Display specifications are nearly identical, with both offering 6.5-inch IPS LCD screens and a resolution of 720 x 1600 pixels at 60Hz.
- In terms of performance, the C21Y is powered by the Unisoc T610 chipset, while the Y12a uses the Snapdragon 439, with both models featuring 3GB of RAM.
- Camera capabilities are comparable, as both have a 13 MP main sensor, but the Y12a has an 8 MP selfie camera compared to the C21Y's 5 MP.
- Both devices come with a 5000mAh battery, though the Y12a supports 10W charging, while the C21Y does not support fast charging.
- Software-wise, the C21Y runs on Android 10 or 11, while the Y12a operates on Android 11 with Funtouch 11.
Side-by-side Specification Comparison
Realme C21Y
vivo Y12a
General
Release Date
2021, June 21
2021, June 21
Announced
2021, June 21
2021, June 21
Description
N/A
N/A
Display
Size
6.5"
6.51"
Type
IPS LCD, 400 nits (typ)
IPS LCD
Resolution
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Unisoc T610 (12 nm)
Qualcomm SDM439 Snapdragon 439 (12 nm)
CPU
Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
GPU
Mali-G52 MP2
Adreno 505
Memory
32GB 3GB RAM, 64GB 4GB RAM
32GB 3GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP, f/2.2, 26mm (wide), 1/3.06", 1.12µm, PDAF2 MP, f/2.4, (macro)2 MP, f/2.4, (depth)
13 MP, f/2.2, (wide), PDAF2 MP, f/2.4, (depth)
Main Camera Features
LED flash, HDR, panorama
LED flash, Panorama
Front Camera
5 MP, f/2.2, (wide), 1/5.0", 1.12µm
8 MP, f/1.8
Front Camera Features
HDR, panorama
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
5000 mAh
5000 mAh
Battery Details
5000 mAh
5000 mAh
Charging Details
Reverse wired
10W wired5W reverse wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
164.5 x 76 x 9.1 mm (6.48 x 2.99 x 0.36 in)
164.4 x 76.3 x 8.4 mm (6.47 x 3.00 x 0.33 in)
Weight
200 g
191 g
Materials
Glass front, plastic back, plastic frame
Glass front, plastic back, plastic frame
Colors
Cross Black, Cross Blue
Phantom Black, Glacier Blue
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
4.2, A2DP
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS, GLONASS, GALILEO, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 10/ Android 11
Android 11, Funtouch 11
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Fingerprint (side-mounted), accelerometer, proximity, compass

