Samsung Galaxy A21s (6GB RAM + 128GB) has better RAM than Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB). Neither of them has front Flash. In terms of display resolution, Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB) has better resolution of 2400 x 1080 than Samsung Galaxy A21s (6GB RAM + 128GB) which has resolution of 1600 x 720. Both have the same amount of internal memory.
| Name | Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB) | Samsung Galaxy A21s (6GB RAM + 128GB) |
| RAM | 4 GB | 6 GB |
|---|---|---|
| Display | 6.67 in | 6.5 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 5020 mAh | 5000 mAh |
| Camera | 48 MP Quad | 48 MP Quad |
| Price | Rs. 15999 | Rs. 11999 |
The launch Date of the first phone is March 12, 2020. The cost of Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB) is Rs. 15999. The launch Date of the second phone is June 17, 2020. The cost of Samsung Galaxy A21s (6GB RAM + 128GB) is Rs. 11999.
Samsung Galaxy A21s (6GB RAM + 128GB) has screen size of 6.5 inches which falls short to Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB)'s 6.67 inch screen. Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB) has IPS LCD Screen type where as Samsung Galaxy A21s (6GB RAM + 128GB) has Screen type. Xiaomi's phone has display density of 395 PPI & Samsung's phone has only 294 PPI display density. In terms of screen to body ratio, Xiaomi's phone has better screen to body ratio of ~ 84.5% than Samsung's phone ~ 82.8%. Both mobiles have same aspect ratio of 20:9.
Samsung Galaxy A21s (6GB RAM + 128GB)'s larger 6 GB RAM is better for playing games and all with respect to Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB)'s lower 4 GB RAM. and both have same Internal Memory of 128 GB.
Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB) has 48 MP Quad Rear Camera in comparison to Samsung Galaxy A21s (6GB RAM + 128GB)'s 48 MP Quad Rear Camera. Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB) will be better choice if you're looking to click lot of selfies as it has better 16 MP Front Camera in comparison to Samsung Galaxy A21s (6GB RAM + 128GB)'s 13 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 10.0 and the second one on 10 version.
| Name | Xiaomi Redmi Note 9 Pro (4GB RAM + 128GB) | Samsung Galaxy A21s (6GB RAM + 128GB) |
| General | ||
| Model | Redmi Note 9 Pro | SM-A217FZWGINS, Galaxy A21s |
| 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 | March 12, 2020 | June 17, 2020 |
| Design | ||
| Dimensions | 76.68 x 165.75 x 8.8 mm | 75.3 x 163.6 x 8.9 mm |
| Weight | 209 g | 191 g |
| Display | ||
| Type | Color IPS LCD Screen (16M Colors) | Color PLS TFT LCD (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.67 inches, 1080 x 2400 pixels | 6.5 inches, 720 x 1600 pixels |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 395 PPI | ~ 294 PPI |
| Screen to Body Ratio | ~ 84.5% | ~ 82.8% |
| Glass Type | Corning Gorilla Glass 5 | |
| Features | Standard Mode, Sunshine Mode, Night mode, Color Temperature Adjustment | Infinity-O Display |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 4 GB | 6 GB |
| Storage | 128 GB | 128 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, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.0, A2DP, LE |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | Yes | |
| Extra | ||
| GPS | Yes, with A-GPS, Galileo, GLONASS, Beidou, NavIC Support | yes, with A-GPS, Glonass, Beidou, Galileo |
| Fingerprint Sensor | Yes, Side | Yes, Rear |
| Face Unlock | Yes | Yes |
| Sensors | Proximity sensor, Ambient light sensor, Accelerometer, Gyroscope, Electronic compass | Accelerometer, Gyro Sensor, Geomagnetic Sensor, Proximity Sensor, Virtual Light Sensing, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| Splash Resistant | Yes | |
| Extra Features | UFS2.1 | |
| Camera | ||
| Rear Camera | 48 MP ƒ/1.79 (Wide Angle) 8 MP ƒ/2.2 (Ultra Wide) 5 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 (Depth Sensor) | 48 MP ƒ/2 (Main) 8 MP ƒ/2.2 (Ultra Wide) 2 MP ƒ/2.4 (Macro) Macro 2 MP ƒ/2.4 (Depth Sensor) |
| Auto Focus | Yes | Yes |
| Features | Night mode, AI Scene detection, Smart ultra-wide angle mode, AI Beautify, Burst mode, Tilt-shift, Level display, Custom watermark, Pro Mode, AI Portrait Mode, 3D Lighting, Panorama Mode | |
| Video Recording | 4K @ 30 fps UHD, 1080p @ 30/60 fps FHD, 720p @ 30 fps HD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP ƒ/2 (Main) | 13 MP ƒ/2.2 (Main) |
| Front Video Recording | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v10.0 | Android v10, upgradable to v11 |
| Chipset | Qualcomm Snapdragon 720G | Samsung Exynos 850 |
| CPU | 2.3 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| Core Details | 2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver | 4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55 |
| GPU | Adreno 618 | Mali-G52 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, AMR, FLAC, APE | MP3, M4A, 3GA, AAC, OGG, OGA, WAV, WMA, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA |
| Video | MP4, M4V, MKV, XVID | MP4, M4V, 3GP, 3G2, WMV, ASF, AVI, FLV, MKV, WEBM |
| FM Radio | Yes | No |
| 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 | |
| StandBy Time | 20 days | |
| Talk Time | 29 hours | 54 hours |
| Music Playback Time | 109 hours | |