Xiaomi Redmi K90 vs Xiaomi Redmi K20 (6GB RAM + 128GB)
Here you can compare Xiaomi Redmi K90 and Xiaomi Redmi K20 (6GB RAM + 128GB). Comparing Xiaomi Redmi K90 vs Xiaomi Redmi K20 (6GB RAM + 128GB) on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Xiaomi Redmi K90 stands against Xiaomi Redmi K20 (6GB RAM + 128GB) and which one should you buy The current lowest price found for Xiaomi Redmi K90 is ₹35,990 and for Xiaomi Redmi K20 (6GB RAM + 128GB) is ₹17,790. The details of both of these products were last updated on Aug 21, 2026.
| Specification | Xiaomi Redmi K90 | Xiaomi Redmi K20 (6GB RAM + 128GB) |
|---|---|---|
| RAM | 12 GB | 6 GB |
| CPU | 4.32 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| Battery | 7100 mAh | 4000 mAh, Li-Po Battery |
| Internal Memory | 256 GB | 128 GB |
| OS | Android v16 | Android v9.0 (Pie), upgradable to v11 |
| Price | ₹35,990 | ₹17,790 |
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Overview
| Specs Score | 76 / 100 Better Specs | 50 / 100 |
| Display Resolution | 1156 x 2510 pixels Better Resolution | 1080 x 2340 pixels |
| RAM | 12 GB More RAM | 6 GB |
| Storage | 256 GB More Storage | 128 GB |
| CPU Clock Speed | 4.32 GHz Faster Clock Speed | 2.2 GHz |
| Weight | 206 g | 191 g Lighter |
| Thickness | 8 mm Slimmer | 8.8 mm |
| Battery | 7100 mAh Bigger Battery | 4000 mAh |
| Unique Features | 5G No NFC Reverse Charging IR Blaster | No 3.5mm Audio Jack No No No |
General
| Model | K90 | Redmi K20 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | October 27, 2025 | July 17, 2019 |
Design
| Dimensions | 75.25 x 157.49 x 8 mm | 74.3 x 156.7 x 8.8 mm |
| Weight | 206 g | 191 g |
Display
| Type | Color AMOLED Screen (1B Colors) | Color Horizon (16M Colors) |
| Touch | Yes, 480 Hz Touch Sampling Rate | Yes |
| Size | 6.59 inches, 1156 x 2510 pixels, 120 Hz | 6.39 inches, 1080 x 2340 pixels |
| Aspect Ratio | 20:9 | 19.5:9 |
| PPI | ~ 419 PPI | ~ 403 PPI |
| Screen to Body Ratio | ~ 87.5% | ~ 91.9% |
| Brightness | 3500nits | |
| Features | Corning Gorilla Glass 5, Always On Display, Dark Mode, Reading Mode 2.0 | |
| Notch | Yes, Punch Hole | No |
Memory
| RAM | 12 GB | 6 GB |
| Storage | 256 GB | 128 GB |
| Storage Type | UFS 4 | |
| Card Slot | No |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | n1/n3/n5/n7/n8/n28/n66/n38/n40/n41/n48/n77/n78 | |
| VoLTE | Yes | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 7 | |
| Bluetooth | Yes, v5.4, A2DP, LE | Yes, v5.0 |
| 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. Up to tri-band: GLONASS, BDS, GALILEO, QZSS, NavIC | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Color Spectrum | Vibration moto,r Proximity, Ambient light, Electronic compass, Accelerometer, Gyroscope |
| 3.5mm Headphone Jack | No | Yes |
| NFC | Yes | |
| Splash Resistant | Yes | |
| Dust Resistant | No | |
| Extra Features | UFS2.1 |
Camera
| Rear Camera | 50 MP (Wide Angle) 50 MP (Telephoto) 8 MP (Wide Angle) | 48 MP ƒ/1.8 (Main) 13 MP ƒ/2.4 (Wide Angle) 8 MP ƒ/2.4 (Telephoto) |
| OIS | Yes | |
| Auto Focus | Yes | Yes |
| Features | Triple camera zoom, PDAF Focus mode, Monochrome Dual Flash, Slow Motion | |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 30/60 fps FHD, 720p @ 1920 fps HD | 1080p @ 120/30/60 fps FHD, 720p @ 30 fps HD |
| Flash | Yes, Dual LED | Yes, Dual LED |
| Front Camera | 20 MP (Wide Angle) Punch Hole | 20 MP ƒ/2.2 Popup |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 720p @ 30 fps HD |
Technical
| OS | Android v16 | Android v9.0 (Pie), upgradable to v11 |
| Custom UI | HyperOS 3 | |
| Chipset | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 730 |
| CPU | 4.32 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| Core Details | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz | 2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver |
| GPU | Adreno GPU | Adreno 618 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
Multimedia
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7100 mAh | 4000 mAh, Li-Po Battery |
| Fast Charging | Yes, 100W Fast charging | Yes, 18W Fast Charging |
| Reverse Charging | Yes, 22.5W |
Discuss
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