Both Realme C100x 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 Realme C100x which has resolution of 1570 x 720. Xiaomi Redmi 15C 5G has more internal memory than Realme C100x
| Name | Realme C100x | Xiaomi Redmi 15C 5G |
| RAM | 4 GB | 4 GB |
|---|---|---|
| Display | 6.81 in | 6.9 in |
| Internal Memory | 64 GB | 128 GB |
| Battery | 8000 mAh | 6000 mAh |
| Camera | 50 MP | 50 MP + Auxiliary lens Dual |
| Price | Rs. 17999 | Rs. 15999 |
The launch Date of the first phone is May 07, 2026. The cost of Realme C100x is Rs. 17999. The launch Date of the second phone is December 03, 2025. The cost of Xiaomi Redmi 15C 5G is Rs. 15999.
Xiaomi Redmi 15C 5G has larger screen size of 6.9 inches in comparison to Realme C100x's 6.81 inch screen. Realme C100x has LCD Screen type where as Xiaomi Redmi 15C 5G has IPS LCD Screen type. Both have same 254 PPI. In terms of screen to body ratio, Realme's phone has better screen to body ratio of ~ 90.4% than Xiaomi's phone ~ 82.1%. Realme C100x has 20:9 aspect ratio where as Xiaomi Redmi 15C 5G has 20.6:9 aspect ratio.
Both phones come with 4 GB RAM Xiaomi Redmi 15C 5G has more Internal Memory (128 GB) than Realme C100x (64 GB).
They both have the same 50 MP Rear Camera. Xiaomi Redmi 15C 5G will be better choice if you're looking to click lot of selfies as it has better 8 MP Front Camera in comparison to Realme C100x's 5 MP Front Camera.
Both the phones has Android Operating System but the first one runs on version 16 and the second one on 15 version.
| Name | Realme C100x | Xiaomi Redmi 15C 5G |
| General | ||
| Model | RMX5366, C100x | 15C 5G |
| Sim Type | Dual Sim, GSM+GSM | 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 | May 07, 2026 | December 03, 2025 |
| In The Box | Phone x 1, Charger x 1, USB Data Cable x 1, SIM Ejector Tool x 1, Quick Guide x 1, Safety Guide x 1, Protective Case x 1 | Dark Purple, Moonlight Blue, Midnight Black |
| Design | ||
| Dimensions | 78.2 x 166.48 x 8.78 mm | 79.47 x 171.56 x 7.99 mm |
| Weight | 219 g | 211 g |
| Bezel less | No | |
| Colors | Golden Coast, Deepblue Tides | |
| Display | ||
| Type | Color LCD Screen (16.7M) | Color IPS LCD Screen (16M Colors) |
| Touch | Yes, 240 Hz Touch Sampling Rate | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.81 inches, 720 x 1570 pixels, 120 Hz | 6.9 inches, 720 x 1600 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20.6:9 |
| PPI | ~ 254 PPI | ~ 254 PPI |
| Screen to Body Ratio | ~ 90.4% | ~ 82.1% |
| Glass Type | Panda@MN228 | |
| Brightness | Normal brightness: 700 nits(Typical) HBM: 900 nits(Typical) | 660 nits (typ), 810 nits HBM |
| Color Gamut | NTSC 83% | 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, Water Drop Notch | Yes, Punch Hole |
| Memory | ||
| RAM | 4 GB | 4 GB |
| RAM Type | LPDDR4X | LPDDR4X |
| Expandable RAM | Upto 6 GB Extra Virtual RAM | Upto 4 GB Extra Virtual RAM |
| Storage | 64 GB | 128 GB |
| Storage Type | eMMC 5.1 | UFS 2.2 |
| Card Slot | Yes | 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, Dual Stand-By | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 5 (802.11ac) Supported 802.11a/b/g/n Supported Wi-Fi Display Supported WLAN Tethering Supported | Wi-Fi: 2.4GHz | 5GHz |
| Bluetooth | Yes, v5.2, SBC, AAC, LDAC | 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 | No | |
| Performance | ||
| Geekbench Score | 1,942 (Multi Core) (v6) 735 (Single Core) 1,420 (OpenCL) 1,405 (Vulkan) | |
| Extra | ||
| GPS | GPS(L1), GLONASS(G1), BDS(B1C), Galileo(E1) | GPS | Glonass | Galileo | Beidou |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Proximity sensor, Ambient light sensor, E-compass, Accelerometer, Gyroscope | Virtual Proximity Sensor, Ambient Light Sensor Accelerometer, Electronic compass |
| 3.5mm Headphone Jack | Yes | Yes |
| Gaming Features | 60FPS Smooth Gaming Experience | |
| AI Features | AI Netpilot, Next Ai, Ai Editor, One-Press Access to Gemini, Circle to Search, AI Outdoor Mode | Gemini, Circle to Search |
| Splash Resistant | Yes | Yes |
| IP Rating | IP64 | IP64 |
| Dust Resistant | Yes | Yes |
| Extra Features | Military-Grade Shock Resistance | |
| Camera | ||
| Rear Camera | 50 MP ƒ/1.8 (Wide Angle) 50MP; f/1.8; FOV 76°; 5P lens; AF Supported | 50 MP ƒ/1.8 (Wide Angle) (Auxiliary lens) |
| Auto Focus | Yes | Yes |
| Features | Photo, Video, Portrait, Night, PRO, Panorama, SLO-MO, Dual-view video, TIME-LAPSE, STICKER, Hypertext, HI-RES, GOOGLE LEN, Video: 1080P@30 fps, 720P@30 fps Support video zoom shooting Time lapse photography: 1080P@30fps, 720P@30 fps Slow motion: 720P@120fps Support multi-scene video shooting:720p@30fps | HDR Mode, Night Mode, Auto Night Mode, Portrait Mode, Time-lapse |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 720p @ 30 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 5 MP ƒ/2.2 f/2.2; FOV 77°; 3P lens | 8 MP ƒ/2.2 (Wide Angle) Punch Hole, Screen Flash |
| Front Video Recording | 720p @ 30 fps HD | 1080p @ 30 fps FHD |
| Front Camera Features | Photo, Video, Portrait, Night, Panorama, Dual-view video, STICKER, Video:720P@30fps Supports Dual-view video shooting | |
| Technical | ||
| OS | Android v16 | Android v15 |
| Custom UI | Realme UI 7 | HyperOS 2 |
| Chipset | Unisoc T7250 | Mediatek Dimensity 6300 |
| CPU | 1.8 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 | Arm Mali-G57@850MHz | Arm Mali-G57 MC2 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, AAC, APE, AMR, WAV, OGG, FLAC, WMA | Yes |
| Video | AVI, 3GP, MP4, WMV, MKV, MOV, ASF, FLV | Yes |
| FM Radio | No | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 8000 mAh | 6000 mAh, Li-Po Battery |
| Fast Charging | Yes, 45W SUPERVOOC Charge | Yes, 33W |
| Reverse Charging | Yes | Yes |