Xiaomi Redmi K90 Ultra vs Xiaomi Redmi K100
Here you can compare Xiaomi Redmi K90 Ultra and Xiaomi Redmi K100. Comparing Xiaomi Redmi K90 Ultra vs Xiaomi Redmi K100 on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Xiaomi Redmi K90 Ultra stands against Xiaomi Redmi K100 and which one should you buy The current lowest price found for Xiaomi Redmi K90 Ultra is ₹59,990 and for Xiaomi Redmi K100 is ₹59,990. The details of both of these products were last updated on Oct 29, 2026.
| Specification | Xiaomi Redmi K90 Ultra | Xiaomi Redmi K100 |
|---|---|---|
| Display | 6.83 inches, 1280 x 2772 pixels, 165 Hz | 6.83 inches, 1280 x 2772 pixels, 165 Hz |
| Battery | 8550 mAh, Li-Po Battery | 10000 mAh, Si/C Li-ion Battery |
| Rear Camera | 50 MP ƒ/1.7 (Wide Angle) 24mm (wide), 1/1.55", 1.0µm, PDAF, OIS 8 MP ƒ/2.2 (Ultra Wide) 15mm (ultrawide), 1/4.0", 1.12µm | 50 MP ƒ/1.7 (Wide Angle) 1/1.55", 1.0µm, PDAF, OIS 8 MP ƒ/2.2 (Ultra Wide) 15mm, 120˚ (ultrawide), 1/4.0", 1.12µm |
| OS | Android v16 | Android v17 |
| Internal Memory | 256 GB | 256 GB |
| Price | ₹59,990 | ₹59,990 |
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Overview
| Specs Score | 81 / 100 Better Specs | 79 / 100 |
| Thickness | 8.2 mm Slimmer | 8.7 mm |
| Battery | 8550 mAh | 10000 mAh Bigger Battery |
General
| Model | 2604FRK1EC | K100 |
| 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 | June 30, 2026 | October 27, 2026 |
Design
| Dimensions | 77.9 x 162.9 x 8.2 mm | 77.9 x 162.9 x 8.7 mm |
| Weight | 227 g | 234.5 g |
| Colors | Black, Blue, Silver | Black, White, Green |
Display
| Type | Color AMOLED Screen (68 B) | Color AMOLED Screen (68B) |
| Touch | Yes | Yes |
| Size | 6.83 inches, 1280 x 2772 pixels, 165 Hz | 6.83 inches, 1280 x 2772 pixels, 165 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 447 PPI | ~ 447 PPI |
| Screen to Body Ratio | ~ 90.3% | ~ 90.3% |
| Brightness | 9500 nits (peak) | 3500 nits (HBM), 9000 nits (peak) |
| HDR Support | Yes, Dolby Vision, HDR Vivid, HDR10+ | Yes, Dolby Vision |
| Adaptive Refresh Rate | Yes | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
Memory
| RAM | 12 GB | 12 GB |
| Storage | 256 GB | 256 GB |
| Storage Type | UFS 4.1 | UFS 4.1 |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | SA: n1/2/3/5/7/8/20/28/38/40/41/48/66*/77/78/79, NSA: n1/3/5/7/8/20/28/38/40/41/66*/77/78/79 | n1/n3/n5/n7/n8/n28/n66/n38/n40/n41/n48/n77/n78 |
| VoLTE | Yes, Dual Stand-By | Yes |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | Yes, v5.4, A2DP, LE, aptX HD | Yes, v5.4, A2DP, LE |
| USB | Yes, USB-C | Yes, USB-C v2.0 |
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| IR Blaster | Yes | Yes |
Extra
| GPS | with GPS, Galileo, GLONASS, Beidou, NAVIC | Yes, with A-GPS. Up to tri-band: GLONASS, BDS, GALILEO, QZSS, NavIC |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Proximity, Gyro, Compass | Accelerometer, Gyro, Proximity, Compass |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 | IP68/IP69K |
| Dust Resistant | Yes | Yes |
Camera
| Rear Camera | 50 MP ƒ/1.7 (Wide Angle) 24mm (wide), 1/1.55", 1.0µm, PDAF, OIS 8 MP ƒ/2.2 (Ultra Wide) 15mm (ultrawide), 1/4.0", 1.12µm | 50 MP ƒ/1.7 (Wide Angle) 1/1.55", 1.0µm, PDAF, OIS 8 MP ƒ/2.2 (Ultra Wide) 15mm, 120˚ (ultrawide), 1/4.0", 1.12µm |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Color Spectrum Sensor, HDR, Panorama | Color spectrum sensor, HDR, panorama |
| Video Recording | 8K @ 30 fps UHD, 4K @ 60 fps UHD | 4K, 1080p |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 20 MP (Wide Angle) Punch Hole, Autofocus, Screen Flash | 20 MP (Wide Angle) Punch Hole |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 60 fps FHD |
| Front Camera Features | HDR, panorama | HDR |
Technical
| OS | Android v16 | Android v17 |
| Custom UI | HyperOS 3 | HyperOS 3 |
| Chipset | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite |
| CPU | 4.32 GHz, Octa Core Processor | 4.32 GHz, Octa Core Processor |
| Core Details | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz |
| GPU | Adreno 830 (1200 MHz) | Adreno 840 |
| NPU | Qualcomm Hexagon NPU | |
| Java | No | No |
| Browser | Yes | Yes |
Multimedia
| Yes | Yes | |
| Music | MP3, FLAC, APE, AAC, OGG, WAV, WMA, AMR, AWB | Yes |
| Video | MP4, MKV, AVI, WMV, WEBM, 3GP, ASF playback | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 8550 mAh, Li-Po Battery | 10000 mAh, Si/C Li-ion Battery |
| Fast Charging | Yes, 100W Fast Charging | Yes, 100W Fast charging |
| Reverse Charging | Yes, 22.5W reverse wired | Yes, 22.5W |
| Bypass Charging | Yes |
Discuss
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