Helio G81 Ultra
128GB/256GB storage, microSDXC
4-8GB RAM
50MP
6.9" 720x1600 pixels
Android 15, HyperOS 2
6000mAh
Xiaomi Redmi 15C 4G Android smartphone. Announced Aug 2025. Features 6.9″ display, Helio G81 Ultra chipset, 6000 mAh battery, 256 GB storage, 8 GB RAM, Corning Gorilla Glass 3.
Network
| Speed | HSPA, LTE |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| 3G Bands | HSDPA 850 / 900 / 2100 |
| 4G Bands | LTE |
| Technology | GSM / HSPA / LTE |
Launch
| Status | Available. Released 2025, August 01 |
| Announced | 2025, August 01 |
Body
| SIM | Nano-SIM + Nano-SIM |
| Build | Glass front (Gorilla Glass 3), plastic frame, glass back or silicone polymer (eco leather) back |
| Weight | 205 g (7.23 oz) |
| Dimensions | 171.6 x 79.5 x 8 mm (6.76 x 3.13 x 0.31 in) |
Display
| Size | 6.9 inches, 114.9 cm2 (~84.3% screen-to-body ratio) |
| Type | IPS LCD, 120Hz |
| Protection | Corning Gorilla Glass 3 |
| Resolution | 720 x 1600 pixels, 20:9 ratio (~254 ppi density) |
Platform
| Operating System | Android 15, HyperOS 2 |
| CPU | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55) |
| GPU | Mali-G52 MC2 |
| Chipset | Mediatek Helio G81 Ultra (12 nm) |
Memory
| Internal Storage | 128GB 4GB RAM, 128GB 6GB RAM, 256GB 4GB RAM, 256GB 8GB RAM |
| Card Slot | microSDXC (dedicated slot) |
Main Camera
| Dual | 50 MP, f/1.8, 28mm (wide), 1/2.76", 0.64µm, PDAF Auxiliary lens |
| Video | 1080p@30fps |
| Features | LED flash, HDR |
Selfie Camera
| Video | 1080p@30fps |
| Single | 8 MP, f/2.0, (wide), 1/4.0", 1.12µm |
| Features | HDR |
Sound
| specs.keys.3.5mm jack | Yes |
| Loudspeaker | Yes |
Communications
| NFC | Yes (market/region dependent) |
| USB | USB Type-C 2.0, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| Radio | FM radio |
| Bluetooth | 5.4, A2DP, LE |
| Positioning | GPS, GLONASS, GALILEO, BDS |
Features
| Sensors | Fingerprint (side-mounted), accelerometer, compass |
Battery
| Type | 6000 mAh |
| Charging | 33W wired, PD |
Miscellaneous
| Price | $ 138.50 / £ 89.00 / € 99.15 |
| Colors | Moonlight Blue, Mint Green, Midnight Gray, Twilight Orange |
| Models | 25078RA3EA, 25078RA3EL |
