Xiaomi Redmi 15 5G (8GB RAM + 256GB) vs Xiaomi Redmi K20 (6GB RAM + 128GB)
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Overview
| Specs Score | 79 / 100 Better Specs | 75 / 100 |
| Display Size | 6.9 in Bigger Display | 6.39 in |
| Screen To Body Ratio | ~ 83.2% | ~ 91.9% Less Bezels |
| RAM | 8 GB More RAM | 6 GB |
| Storage | 256 GB More Storage | 128 GB |
| Front Camera | 8 MP | 20 MP Better Front Camera Resolution |
| Weight | 217 g | 191 g Lighter |
| Battery | 7000 mAh Bigger Battery | 4000 mAh |
| Unique Features | 5G No FM Radio Memory Card Support Reverse Charging IR Blaster | No 3.5mm Audio Jack No No No No |
General
| Country of Origin | India | |
| Model | 15C 5G | Redmi K20 |
| Sim Type | Dual Sim, GSM+GSM (Hybrid Slot) | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano SIM |
| Device Type | Smartphone | Smartphone |
| OS Updates | 2 years | |
| Security Updates | 4 years | |
| Release Date | August 01, 2025 | July 17, 2019 |
| In The Box | Mobile Phone * 1, Adapter * 1, USB Type-C cable * 1, SIM Eject Tool * 1, Quick Start Guide, & Warranty Card * 1, Safety Information * 1 |
Design
| Dimensions | 80.45 x 168.48 x 8.4 mm | 74.3 x 156.7 x 8.8 mm |
| Weight | 217 g | 191 g |
| Colors | Sandy Purple, Frosted White, Midnight Black |
Display
| Type | Color IPS Screen (16M Colors) | Color AMOLED Screen (16M Colors) |
| Touch | Yes, 288 Hz Touch Sampling Rate | Yes |
| Size | 6.9 inches, 1080 x 2340 pixels, 144 Hz | 6.39 inches, 1080 x 2340 pixels |
| Aspect Ratio | 20.6:9 | 19.5:9 |
| PPI | ~ 374 PPI | ~ 403 PPI |
| Screen to Body Ratio | ~ 83.2% | ~ 91.9% |
| Brightness | 850nits Peak Brightness | |
| Features | TÜV Rheinland Circadian Friendly, TÜV Rheinland flicker free, TÜV Rheinland Low Blue light | Corning Gorilla Glass 5, Always On Display, Dark Mode, Reading Mode 2.0 |
| Notch | Yes, Punch Hole | No |
Memory
| RAM | 8 GB | 6 GB |
| RAM Type | LPDDR4X | |
| Storage | 256 GB | 128 GB |
| Storage Type | UFS 2.2 | |
| Card Slot | Yes, (Hybrid Slot), upto 1 TB | No |
Connectivity
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | SA: n1/n3/n5/n8/n28/n40/n78, NSA: n1/n3/n40/n78/n8 | |
| VoLTE | Yes | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.1, A2DP, LE | Yes, v5.0 |
| USB | Yes, USB-C | 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, Glonass, Beidou | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes, Side | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Ambient Light Sensor, Proximity Sensor (Virtual), E Compass, Accelerometer | Vibration moto,r Proximity, Ambient light, Electronic compass, Accelerometer, Gyroscope |
| 3.5mm Headphone Jack | Yes | |
| AI Features | Circle to Search, Gemini AI, AI Erase | |
| Splash Resistant | Yes | |
| IP Rating | IP64 | |
| Dust Resistant | Yes | |
| Extra Features | Hydro Touch | UFS2.1 |
Camera
| Rear Camera | 50 MP ƒ/1.75 (Wide Angle) | 48 MP ƒ/1.8 (Main) 13 MP ƒ/2.4 (Wide Angle) 8 MP ƒ/2.4 (Telephoto) |
| Auto Focus | Yes | Yes |
| Features | AI Sky, AI Erase, Classic Film Filters | Triple camera zoom, PDAF Focus mode, Monochrome Dual Flash, Slow Motion |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 120/30/60 fps FHD, 720p @ 30 fps HD |
| Flash | Yes, LED | Yes, Dual LED |
| Front Camera | 8 MP ƒ/2.2 (Wide Angle) Punch Hole, Screen Flash | 20 MP ƒ/2.2 Popup |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 720p @ 30 fps HD |
Technical
| OS | Android v15 | Android v9.0 (Pie), upgradable to v11 |
| Custom UI | HyperOS 2 | |
| Chipset | Qualcomm Snapdragon 6s Gen3 | Qualcomm Snapdragon 730 |
| CPU | 2.3 GHz, Octa Core Processor | 2.2 GHz, Octa Core Processor |
| Core Details | 2x2.3 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55 | 2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver |
| GPU | Adreno 619 | Adreno 618 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes, supports HTML5 |
Multimedia
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | Yes | No |
| Speaker Type | Bottom Firing Loud Speaker | |
| Audio Features | Dolby Certified, 200% Super Volume | |
| Document Reader | Yes | Yes |
Battery
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 7000 mAh, Si-C EV-Grade Technology | 4000 mAh, Li-Po Battery |
| Fast Charging | Yes, 33W | Yes, 18W Fast Charging |
| Reverse Charging | Yes, 18W |
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