Xiaomi Redmi K20 (6GB RAM + 128GB) vs Samsung Galaxy S25 Ultra
Quick Comparison
Samsung Galaxy S25 Ultra has better RAM than Xiaomi Redmi K20 (6GB RAM + 128GB). In terms of display resolution, Samsung Galaxy S25 Ultra has better resolution of 3120 x 1440 than Xiaomi Redmi K20 (6GB RAM + 128GB) which has resolution of 2340 x 1080. Samsung Galaxy S25 Ultra has more internal memory than Xiaomi Redmi K20 (6GB RAM + 128GB)
| Name | Xiaomi Redmi K20 (6GB RAM + 128GB) | Samsung Galaxy S25 Ultra |
| RAM | 6 GB | 12 GB |
|---|---|---|
| Display | 6.39 in | 6.9 in |
| Internal Memory | 128 GB | 256 GB |
| Battery | 4000 mAh | 5000 mAh |
| Camera | 48 MP + 13 MP + 8 MP Triple | 200 MP Quad |
| Price | Rs. 17989 | Rs. 129999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is July 17, 2019. The cost of Xiaomi Redmi K20 (6GB RAM + 128GB) is Rs. 17989. The launch Date of the second phone is January 22, 2025. The cost of Samsung Galaxy S25 Ultra is Rs. 129999.
Display comparison
Xiaomi Redmi K20 (6GB RAM + 128GB) has screen size of 6.39 inches which falls short to Samsung Galaxy S25 Ultra's 6.9 inch screen. Xiaomi Redmi K20 (6GB RAM + 128GB) has AMOLED Screen type where as Samsung Galaxy S25 Ultra has LTPO AMOLED Screen type. Samsung's phone has display density of 498 PPI & Xiaomi's phone has only 403 PPI display density. In terms of screen to body ratio, Samsung's phone has better screen to body ratio of ~ 92.5% than Xiaomi's phone ~ 91.9%. Both phones have same aspect ratio of 19.5:9.
Memory comparison
Samsung Galaxy S25 Ultra's larger 12 GB RAM is better for playing games and all with respect to Xiaomi Redmi K20 (6GB RAM + 128GB)'s lower 6 GB RAM. Samsung Galaxy S25 Ultra has more Internal Memory (256 GB) than Xiaomi Redmi K20 (6GB RAM + 128GB) (128 GB).
Camera comparison
Samsung Galaxy S25 Ultra's 200 MP Quad Rear Camera outshines Xiaomi Redmi K20 (6GB RAM + 128GB)'s 48 MP + 13 MP + 8 MP Triple Rear Camera in terms of resolution. Xiaomi Redmi K20 (6GB RAM + 128GB) will be better choice if you're looking to click lot of selfies as it has better 20 MP Front Camera in comparison to Samsung Galaxy S25 Ultra's 12 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 9.0 and the second one on 15 version.
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Full Comparison
| Name | Xiaomi Redmi K20 (6GB RAM + 128GB) | Samsung Galaxy S25 Ultra |
| General | ||
| Country of Origin | India | |
| Model | Redmi K20 | SM-S938B, SM-S938B/DS, SM-S938U, SM-S938U1, SM-S938W, SM-S938N, SM-S9380, SM-S938E, SM-S938E/DS |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano SIM | eSIM+Nano SIM |
| SAR | 1.26 W/kg (Head) 0.64 W/kg (Body) | |
| Device Type | Smartphone | Smartphone |
| Release Date | July 17, 2019 | January 22, 2025 |
| In The Box | Handset, Stylus Pen, Data Cable (Type C to C), Sim Ejection Pin | |
| Design | ||
| Dimensions | 74.3 x 156.7 x 8.8 mm | 77.6 x 162.8 x 8.2 mm |
| Weight | 191 g | 218 g |
| Bezel less | No | |
| Qwerty | No | |
| Colors | Titanium Silverblue, Titanium Black, Titanium Whitesilver, Titanium Gray | |
| Display | ||
| Type | Color AMOLED Screen (16M Colors) | Color LTPO AMOLED Screen (1B Colors) |
| Touch | Yes | Yes |
| Size | 6.39 inches, 1080 x 2340 pixels | 6.9 inches, 1440 x 3120 pixels, 120 Hz |
| Aspect Ratio | 19.5:9 | 19.5:9 |
| PPI | ~ 403 PPI | ~ 498 PPI |
| Screen to Body Ratio | ~ 91.9% | ~ 92.5% |
| Glass Type | Corning Gorilla Armor 2 | |
| Features | Corning Gorilla Glass 5, Always On Display, Dark Mode, Reading Mode 2.0 | HDR10+, 2600 nits (Peak), Always-on Display |
| Notch | No | Yes, Punch Hole |
| Curved Display | No | |
| Memory | ||
| RAM | 6 GB | 12 GB |
| Storage | 128 GB | 256 GB |
| Storage Type | UFS 4.0 | |
| Card Slot | No | No |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| 5G Bands | TDD Sub6: N38(2600), N40(2300), N41(2500), N77(3700), N78(3500), FDD Sub6: N1(2100), N2(1900), N3(1800), N5(850), N7(2600), N8(900), N12(700), N20(800), N25(1900), N26(850), N28(700), N66(AWS-3) | |
| VoLTE | Yes | Yes, Dual Stand-By |
| Vo5G | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 7, 802.11a/b/g/n/ac/ax/be 2.4GHz+5GHz+6GHz, EHT320, MIMO, 4096-QAM | |
| Bluetooth | Yes, v5.0 | Yes, v5.4, A2DP, LE |
| USB | Yes, USB-C v2.0 | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes with A-GPS, Glonass, Beidou, Galileo, QZSS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Vibration moto,r Proximity, Ambient light, Electronic compass, Accelerometer, Gyroscope | Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Hall Sensor, Light Sensor, Proximity Sensor |
| 3.5mm Headphone Jack | Yes | No |
| NFC | Yes | |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| IP Rating | IP68 | |
| Dust Resistant | Yes | |
| Extra Features | UFS2.1 | Photo Assist, Notes Assist, Drawing Assist, Circle to Search, Google Gemini (AI Mobile), 7 Years of Major OS Updates and 7 Years of Security Updates, Titanium Frame, Samsung Care+, Samsung Health, Samsung Wallet, S Pen Included, Glass Front (Corning Gorilla Armor 2), Glass Back (Corning Gorilla Armor 2), Titanium Frame (Grade 5), Stereo Speakers, DisplayPort 1.2, Samsung DeX, Samsung Wireless DeX, Ultra Wideband (UWB) Support |
| Camera | ||
| Rear Camera | 48 MP ƒ/1.8 (Main) 13 MP ƒ/2.4 (Wide Angle) 8 MP ƒ/2.4 (Telephoto) | 200 MP ƒ/1.7 (Wide Angle) 24mm (wide), 1/1.3", 0.6µm, Multi-directional PDAF, OIS 10 MP ƒ/2.4 (Telephoto) 67mm (telephoto), 1/3.52", 1.12µm, PDAF, OIS, 3x Optical Zoom 50 MP ƒ/3.4 (Telephoto) 111mm (Periscope Telephoto), 1/2.52", 0.7µm, PDAF, OIS, 5x Optical Zoom 50 MP ƒ/1.9 (Ultra Wide) 120˚ (Ultrawide), 0.7µm, Dual Pixel PDAF, Super Steady Video |
| Auto Focus | Yes | Yes |
| Features | Triple camera zoom, PDAF Focus mode, Monochrome Dual Flash, Slow Motion | Bixby Vision, Dual Recording, Food, Hyperlapse, Night, Panorama, Photo, Portrait, Portrait Video, Pro, Pro Video, Single Take, Slow Motion, Video, Upto 100X Digital Zoom |
| Video Recording | 1080p @ 120/30/60 fps FHD, 720p @ 30 fps HD | 8K @ 24/30 fps UHD, 4K @ 120/30/60 fps UHD, 1080p @ 240/30/60 fps FHD |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 20 MP ƒ/2.2 Popup | 12 MP ƒ/2.2 (Wide Angle) 26mm (Wide), 1/3.2", 1.12µm, Dual Pixel PDAF Punch Hole, Autofocus, Screen Flash |
| Front Video Recording | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v9.0 (Pie), upgradable to v11 | Android v15 |
| Custom UI | One UI 7 | |
| Chipset | Qualcomm Snapdragon 730 | Qualcomm Snapdragon 8 Elite |
| CPU | 2.2 GHz, Octa Core Processor | 4.32 GHz, Octa Core Processor |
| Core Details | 2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver | 2x4.47 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M |
| GPU | Adreno 618 | Adreno 830 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes |
| 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 | 4000 mAh, Li-Po Battery | 5000 mAh, Li-ion Battery |
| Fast Charging | Yes, 18W Fast Charging | Yes, 45W Fast Charging PD3.0, 65% in 30 min |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 10W | |
| Reverse Wireless Charging | Yes, 4.5W | |
| Video Playback Time | 31 hours | |