Both Xiaomi Redmi 9 Prime and Xiaomi Redmi 10A (4GB RAM + 64GB) comes with same RAM. In terms of display resolution, Xiaomi Redmi 9 Prime has better resolution of 2340 x 1080 than Xiaomi Redmi 10A (4GB RAM + 64GB) which has resolution of 1600 x 720. Both have the same amount of internal memory.
| Name | Xiaomi Redmi 9 Prime | Xiaomi Redmi 10A (4GB RAM + 64GB) | 
| RAM | 4 GB | 4 GB | 
|---|---|---|
| Display | 6.53 in | 6.53 in | 
| Internal Memory | 64 GB | 64 GB | 
| Battery | 5020 mAh | 5000 mAh | 
| Camera | 13 MP Quad | 13 MP | 
| Price | Rs. 8499 | Rs. 8999 | 
The launch Date of the first phone is August 4, 2020 . The cost of Xiaomi Redmi 9 Prime is Rs. 8499. The launch Date of the second phone is April 20, 2022. The cost of Xiaomi Redmi 10A (4GB RAM + 64GB) is Rs. 8999.
Xiaomi Redmi 9 Prime has IPS LCD Screen type where as Xiaomi Redmi 10A (4GB RAM + 64GB) has IPS Screen type. Xiaomi Redmi 9 Prime has display density of 395 PPI & Xiaomi Redmi 10A (4GB RAM + 64GB) has only 269 PPI display density. In terms of screen to body ratio, Xiaomi Redmi 9 Prime has better screen to body ratio of ~ 83.2% than Xiaomi Redmi 10A (4GB RAM + 64GB)'s ~ 82.1%. Xiaomi Redmi 9 Prime has 19.5:9 aspect ratio where as Xiaomi Redmi 10A (4GB RAM + 64GB) has 20:9 aspect ratio.
Both mobiles come with 4 GB RAM and both have same Internal Memory of 64 GB.
They both have the same 13 MP Quad Rear Camera. Xiaomi Redmi 9 Prime will be better choice if you're looking to click lot of selfies as it has better 8 MP Front Camera in comparison to Xiaomi Redmi 10A (4GB RAM + 64GB)'s 5 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version v10 (Q) and the second one on 11 version.
| Name | Xiaomi Redmi 9 Prime | Xiaomi Redmi 10A (4GB RAM + 64GB) | 
| General | ||
| Model | Redmi 9 Prime | Redmi 10A | 
| 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 | August 4, 2020 | April 20, 2022 | 
| Design | ||
| Dimensions | 77 x 163.3 x 9.1 mm | 77.07 x 164.9 x 9 mm | 
| Weight | 198 g | 194 g | 
| Display | ||
| Type | Color IPS LCD Screen (16M Colors) | Color IPS Screen (16M Colors) | 
| Touch | Yes | Yes | 
| Size | 6.53 inches, 1080 x 2340 pixels | 6.53 inches, 720 x 1600 pixels | 
| Aspect Ratio | 19.5:9 | 20:9 | 
| PPI | ~ 395 PPI | ~ 269 PPI | 
| Screen to Body Ratio | ~ 83.2% | ~ 82.1% | 
| Glass Type | Corning Gorilla Glass 3 | |
| Features | Brightness : 400nit typ, Contrast: 1500:1, NTSC : 70% | |
| Notch | Yes, Water Drop Notch | Yes, Water Drop Notch | 
| Memory | ||
| RAM | 4 GB | 4 GB | 
| Storage | 64 GB | 64 GB | 
| Card Slot | Yes, upto 512 GB | Yes, upto 512 GB | 
| Connectivity | ||
| GPRS | Yes | Yes | 
| EDGE | Yes | Yes | 
| 3G | Yes | Yes | 
| 4G | Yes | Yes | 
| VoLTE | Yes, Dual Stand-By | Yes | 
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.0, A2DP, LE | 
| USB | Yes, USB-C | Yes, microUSB | 
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging | 
| IR Blaster | Yes | No | 
| Extra | ||
| GPS | yes with A-GPS, Glonass, Beidou | Yes, with A-GPS, Glonass, Beidou | 
| Fingerprint Sensor | Yes, Rear | Yes, Rear | 
| Face Unlock | Yes | Yes | 
| Sensors | Light sensor, Proximity sensor, Accelerometer, Compass | Accelerometer, Gyro, Proximity, Compass | 
| 3.5mm Headphone Jack | Yes | Yes | 
| Splash Resistant | Yes, P2i Technology | No | 
| Camera | ||
| Rear Camera | 13 MP ƒ/1.8 (Main) 8 MP ƒ/2.2 (Ultra Wide) 5 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 (Depth Sensor) | 13 MP ƒ/2.2 (Wide Angle) | 
| Auto Focus | Yes, Phase Detection autofocus | Yes | 
| Features | Digital Zoom, Face detection, Touch to focus | Standard HDR, Portrait Mode | 
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 8 MP ƒ/2 | 5 MP ƒ/2.2 (Wide Angle) Screen Flash | 
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD | 
| Technical | ||
| OS | Android v10 | Android v11 | 
| Chipset | MediaTek Helio G80 | MediaTek Helio G25 | 
| CPU | 2 GHz, Octa Core Processor | 2 GHz, Octa Core Processor | 
| Core Details | 2 GHz, Dual core, Cortex A75 + 1.8 GHz, Quad core, Cortex A55 | 8X Cortex-A53 cores 2.0GHz & 8X Cortex-A53 cores 1.5GHz | 
| GPU | Mali-G52 | ARM GE8320 | 
| Java | No | No | 
| Browser | Yes | Yes, supports HTML5 | 
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes | 
| Video | Yes | Yes | 
| FM Radio | Yes | Yes | 
| Document Reader | Yes | Yes | 
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 5020 mAh, Li-Po Battery | 5000 mAh, Li-Po Battery | 
| Fast Charging | Yes, 18W Fast Charging | |
| Talk Time | 31 hours | |
| Music Playback Time | 185 hours | |