Realme C21Y has better RAM than Xiaomi Redmi 9A. Both have the same amount of internal memory.
| Name | Xiaomi Redmi 9A | Realme C21Y |
| RAM | 2 GB | 3 GB |
|---|---|---|
| Display | 6.53 in | 6.5 in |
| Internal Memory | 32 GB | 32 GB |
| Battery | 5000 mAh | 5000 mAh |
| Camera | 13 MP | 13 MP + 2 MP + 2 MP Triple |
| Price | Rs. 9999 | Rs. 10990 |
The launch Date of the first phone is September 2, 2020 . The cost of Xiaomi Redmi 9A is Rs. 9999. The launch Date of the second phone is August 23, 2021. The cost of Realme C21Y is Rs. 10990.
Xiaomi Redmi 9A has larger screen size of 6.53 inches in comparison to Realme C21Y's 6.5 inch screen. There is IPS LCD Screen Type in both the phones. Both have same 269 PPI. In terms of screen to body ratio, Realme's phone has better screen to body ratio of ~ 88.7% than Xiaomi's phone ~ 81.1%. Xiaomi Redmi 9A has 20:9 aspect ratio where as Realme C21Y has 20:9 aspect ratio.
Realme C21Y's larger 3 GB RAM is better for playing games and all with respect to Xiaomi Redmi 9A's lower 2 GB RAM. and both have same Internal Memory of 32 GB.
They both have the same 13 MP Rear Camera. Both of them stand equal in terms of Front Camera Resolution as both have 5 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 10 and the second one on 11 version.
| Name | Xiaomi Redmi 9A | Realme C21Y |
| General | ||
| Model | Redmi 9A | C21Y |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | September 2, 2020 | August 23, 2021 |
| Design | ||
| Dimensions | 77 x 164.9 x 9 mm | 76 x 164.5 x 9.1 mm |
| Weight | 196 g | 200 g |
| Display | ||
| Type | Color IPS LCD Screen (16M Colors) | Color IPS LCD Screen (16.7M) |
| Touch | Yes | Yes |
| Size | 6.53 inches, 720 x 1600 pixels | 6.5 inches, 720 x 1600 pixels, 60 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 269 PPI | ~ 269 PPI |
| Screen to Body Ratio | ~ 81.1% | ~ 88.7% |
| Features | Sunlight Screen Support, COG Sealing Process | |
| Notch | Yes, Water Drop Notch | Yes, Water Drop Notch |
| Memory | ||
| RAM | 2 GB | 3 GB |
| Storage | 32 GB | 32 GB |
| Card Slot | Yes, upto 512 GB | Yes, upto 256 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.0 |
| USB | Yes, microUSB | Yes, microUSB |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging |
| IR Blaster | No | |
| Extra | ||
| GPS | Yes, with A-GPS | With A-GPS, Beidou, Glonass |
| Fingerprint Sensor | No | Yes, Rear |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Proximity | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Gyro-meter, Acceleration Sensor, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| Splash Resistant | Yes, P2i Nano-coating | |
| Camera | ||
| Rear Camera | 13 MP ƒ/1.8 (Wide Angle) | 13 MP ƒ/2.2 (Main) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 Portrait |
| Camera Sensor | CMOS Sensor | |
| Auto Focus | Yes | Yes |
| Features | HDR, Panorama | Beauty, Filter, HDR, Panoramic View, Refocus, Timelapse, Slo-mo, NightScape, Expert |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 720P |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP ƒ/2.2 (Wide Angle) | 5 MP ƒ/2.2 Screen Flash |
| Front Video Recording | 1080p @ 30 fps FHD | 720p |
| Front Camera Features | HDR | Portrait Mode, Fast Forward, Panorama, Beauty Mode, HDR, Face Detection, Filters |
| Technical | ||
| OS | Android v10 | Android v11 |
| Chipset | MediaTek Helio G25 | Unisoc T610 |
| CPU | 2 GHz, Octa Core Processor | 1.8 GHz, Octa Core Processor |
| GPU | IMG PowerVR GE8320 | Mali-G52 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | MPEG, AMRNB, AMRWB, AAC, G711.ALAW, G711.MLAW, VORBIS, OPUS, FLAC |
| Video | Yes | H.264, MPEG-4, H.263, Sorenson Spark, VP8, VP9, H.265 |
| FM Radio | Yes | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 5000 mAh, Li-Po Battery |
| Talk Time | 33 hours | |
| Music Playback Time | 7 days | |