Infinix Smart 20 (4GB RAM + 128GB) vs Xiaomi Redmi 15C 5G
Quick Comparison
Both Infinix Smart 20 (4GB RAM + 128GB) and Xiaomi Redmi 15C 5G comes with same RAM. In terms of display resolution, Xiaomi Redmi 15C 5G has better resolution of 1600 x 720 than Infinix Smart 20 (4GB RAM + 128GB) which has resolution of 1576 x 720. Both have the same amount of internal memory.
| Name | Infinix Smart 20 (4GB RAM + 128GB) | Xiaomi Redmi 15C 5G |
| RAM | 4 GB | 4 GB |
|---|---|---|
| Display | 6.78 in | 6.9 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 5200 mAh | 6000 mAh |
| Camera | 8 MP | 50 MP + Auxiliary lens Dual |
| Price | Rs. 13430 | Rs. 15999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is June 08, 2026. The cost of Infinix Smart 20 (4GB RAM + 128GB) is Rs. 13430. The launch Date of the second phone is December 03, 2025. The cost of Xiaomi Redmi 15C 5G is Rs. 15999.
Display comparison
Infinix Smart 20 (4GB RAM + 128GB) has screen size of 6.78 inches which falls short to Xiaomi Redmi 15C 5G's 6.9 inch screen. Both the phones have IPS LCD Screen Type. Infinix's phone has display density of 259 PPI & Xiaomi's phone has only 254 PPI display density. Infinix Smart 20 (4GB RAM + 128GB) has 19.7:9 aspect ratio where as Xiaomi Redmi 15C 5G has 20.6:9 aspect ratio.
Memory comparison
Both mobiles come with 4 GB RAM and both have same Internal Memory of 128 GB.
Camera comparison
Xiaomi Redmi 15C 5G's 50 MP + Auxiliary lens Dual Rear Camera outclasses Infinix Smart 20 (4GB RAM + 128GB)'s 8 MP Rear Camera in terms of resolution. Both of them stand equal in terms of Front Camera Resolution as both have 8 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 16 and the second one on 15 version.
Related Comparisons
Full Comparison
| Name | Infinix Smart 20 (4GB RAM + 128GB) | Xiaomi Redmi 15C 5G |
| General | ||
| Model | X6840, SMART 20 | 15C 5G |
| Sim Type | Dual Sim | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| OS Updates | 2 years | |
| Security Updates | 4 years | |
| Release Date | June 08, 2026 | December 03, 2025 |
| In The Box | 1 X Handset, 1 X 10W Adaptor, 1 X USB Type-C Cable, 1 X Soft Film, 1 X TPU Case, 1 X SIM Ejector pin, 1 X Quick Start Guide, 1 X Warranty Card | Dark Purple, Moonlight Blue, Midnight Black |
| Design | ||
| Dimensions | 78.8 x 167.7 x 7.7 mm | 79.47 x 171.56 x 7.99 mm |
| Weight | 189 g | 211 g |
| Colors | Shadow Black/Polaris Titanium/ Sunlike Orange/Cloudline Blue | |
| Display | ||
| Type | Color IPS LCD Screen (16M Colors) | Color IPS LCD Screen (16M Colors) |
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.78 inches, 720 x 1576 pixels, 120 Hz | 6.9 inches, 720 x 1600 pixels, 120 Hz |
| Aspect Ratio | 19.7:9 | 20.6:9 |
| PPI | ~ 259 PPI | ~ 254 PPI |
| Screen to Body Ratio | ~ 82.1% | |
| Brightness | 560 nits (Typical), 700 nits (HBM) | 660 nits (typ), 810 nits HBM |
| Color Gamut | 83% NTSC | |
| Features | TÜV Rheinland Low Blue Light (Software Solution) Certified, TÜV Rheinland Circadian Friendly Certified, TÜV Rheinland Flicker Free Certified, Contrast ratio: 1200:1, | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 4 GB | 4 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 4 GB Extra Virtual RAM | Upto 4 GB Extra Virtual RAM |
| Storage | 128 GB | 128 GB |
| Storage Type | eMMC | UFS 2.2 |
| Card Slot | Yes, upto 2 TB | Yes, upto 1 TB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | No | Yes |
| 5G Bands | SA: n1/n3/n5/n8/n28/n40/n78, NSA: n1/n3/n40/n78/n8 | |
| VoLTE | Yes | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 802.11 (a/b/g/n/ac) | Wi-Fi: 2.4GHz | 5GHz |
| Bluetooth | Yes | Yes, v5.4, A2DP, LE |
| USB | Yes, USB-C v2.0 | Yes |
| USB Features | USB Tethering, USB on-the-go, USB Charging, USB Storage | USB on-the-go, USB Charging |
| IR Blaster | Yes | No |
| Performance | ||
| Geekbench Score | 1,942 (Multi Core) (v6) 735 (Single Core) 1,420 (OpenCL) 1,405 (Vulkan) | |
| Extra | ||
| GPS | Yes | GPS | Glonass | Galileo | Beidou |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | |
| Sensors | G-sensor, E-compass, Gyroscope (By Software), Light Sensor, Proximity Sensor, Motor, IR Blaster | Virtual Proximity Sensor, Ambient Light Sensor Accelerometer, Electronic compass |
| 3.5mm Headphone Jack | Yes | Yes |
| AI Features | One-Tap Infinix AI, AI Voice Assistant- Folax, AI Wallpaper Generator | Gemini, Circle to Search |
| Splash Resistant | Yes | Yes |
| IP Rating | IP64 | IP64 |
| Dust Resistant | Yes | Yes |
| Extra Features | Always on Display "limited time", Dynamic Bar, Game Mode, Floating Windows, Split-screen Apps, Call Noise Cancellation, Ultra Link | |
| Camera | ||
| Rear Camera | 8 MP (Main) 1/4'' sensor, 1.12um, AF | 50 MP ƒ/1.8 (Wide Angle) (Auxiliary lens) |
| Auto Focus | Yes | Yes |
| Features | AI Cam, Video, Dual Video, Portrait, Time-Lapse, Super Night, Pro, Panorama, Documents | HDR Mode, Night Mode, Auto Night Mode, Portrait Mode, Time-lapse |
| Video Recording | 1440p @ 30 fps QHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 720p @ 30 fps HD |
| Flash | Yes, Dual LED | Yes, LED |
| Front Camera | 8 MP 1/4'' sensor, 1.12um, AF Punch Hole | 8 MP ƒ/2.2 (Wide Angle) Punch Hole, Screen Flash |
| Front Video Recording | 1440p @ 30 fps QHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Front Camera Features | Time Lapse, Dual Video, Wide Selfie | |
| Technical | ||
| OS | Android v16 | Android v15 |
| Custom UI | XOS16 | HyperOS 2 |
| Chipset | Mediatek Helio G81 Ultimate | Mediatek Dimensity 6300 |
| CPU | 2 GHz, Octa Core Processor | 2.4 GHz, Octa Core Processor |
| Core Details | 2X Arm Cortex-A76@2.4GHz & 6X Arm Cortex-A55@2.0GHz | |
| GPU | Mali G52 | Arm Mali-G57 MC2 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, FLAC, OGG WAV, AAC, AMR, AWB, APE, MIDI | Yes |
| Video | MP4, MKV, TS, 3GP, WEBM | Yes |
| FM Radio | Yes | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5200 mAh | 6000 mAh, Li-Po Battery |
| Fast Charging | Yes, 15W | Yes, 33W |
| Reverse Charging | Yes, 5W | Yes |
| StandBy Time | 38 days | |