Smartphone Xiaomi Redmi 15 5G 6.9 inch 128 GB Grey

The Xiaomi Redmi 15 5G is a grey smartphone with a 6.9" FHD+ display (2340 x 1080) designed for long battery life and reliable everyday performance. It is powered by a Qualcomm Snapdragon 6s Gen 3 processor, comes with 4 GB RAM and 128 GB internal storage (expandable via MicroSD), and features a 50 MP dual rear camera. The device includes a large 7000 mAh battery with 33W turbo charging and 18W reverse charging, IP64 dust and water resistance, and runs Android 15 with HyperOS 2.

Advantages

The phone offers extended battery life thanks to a 7000 mAh Xiaomi Surge battery with advanced silicon-carbon anode technology, 1% standby capability, low-temperature reliability, and high cycle durability. A 6.9" high-refresh FHD+ display with up to 144 Hz AdaptiveSync and eye-care features provides smooth and comfortable viewing. Performance is supported by the Snapdragon 6s Gen 3 chipset and optional memory extension up to 16 GB equivalent. Camera features include a 50 MP main sensor, AI tools, night mode and selfie enhancements. Additional conveniences include Gemini AI integration, Xiaomi interconnectivity, Wet Touch Technology 2.0, and durable materials with a quad-curved design.

Suitable for

• Users who need very long battery life and reliable standby performance
• People who consume multimedia and want a large, high-refresh display
• Everyday photographers who want a versatile 50 MP camera with AI tools
• Users who require 5G connectivity and Hybrid Dual SIM support
• Those who want basic water and dust protection (IP64) for daily use

Key specifications

• Display: 6.9" (17.5 cm) FHD+ 2340 x 1080, up to 144 Hz AdaptiveSync
• Processor: Qualcomm Snapdragon 6s Gen 3
• Memory & Storage: 4 GB RAM, 128 GB internal (MicroSD expandable)
• Cameras: Dual rear 50 MP; front camera 8 MP
• Battery: 7000 mAh (typ), 33W turbo charge, 18W reverse charge
• Connectivity: 5G, Hybrid Dual SIM, Wi‑Fi, Bluetooth 5.1, NFC
• Operating system: Android 15 with HyperOS 2
• Protection: IP64 dust and water resistance
• Weight: 0.217 kg

How to use

Charge the device with the supplied or compatible 33W charger to take advantage of fast charging; reverse charging can be used to power other devices with a suitable cable. Insert a Nano SIM or Nano SIM plus MicroSD card in hybrid slot configuration to set up mobile services. Use the camera app for photos and enable AI features or Auto night mode to improve low-light shots. Access Gemini and other AI features through the system overlay in HyperOS 2 for assistance with writing, image generation and app integrations. Adjust display refresh rate and eye-care settings in the display menu for optimal viewing comfort.

Recommendations

To maintain battery longevity, avoid exposing the device to extreme temperatures for prolonged periods and use recommended chargers. Enable memory extension if you experience heavy multitasking, and enable DC dimming or eye-care modes when using the phone for extended reading or low-light conditions.