Xiaomi Redmi 15 is the 4G variant of the Redmi 15 5G. It features a massive 7,000 mAh battery, a larger 6.9-inch FHD+ screen with a refresh rate of up to 144 Hz, and a reliable Snapdragon 685 chipset. Add IP64 dust/water resistance, 33W fast charging (with 18W reverse charging), and a 50MP dual-camera setup, and you get a no-nonsense 4G phone aimed at users who want smooth scrolling and long endurance without overspending.
It is more or less the same device as the Redmi 15 5G, but without a 5G-capable chipset. If you are shopping for an entry-to-mid smartphone and want dependable battery life, a lively display, and modern styling without overspending, the Redmi 15 4G is a good option.
Xiaomi Redmi 15 Key Specs and Features
- 6.9 inches IPS LCD Display, 1080 x 2340 pixels (~374 ppi density), up to 144Hz Refresh Rate, 700 nits Brightness (Typical)
- Android 15, HyperOS 2
- Qualcomm SM6225 Snapdragon 685 (6 nm) Octa Core Processor
- 6GB, 8GB RAM
- 50 MP (wide) Rear Camera, two support lenses
- 8 MP Front Camera
- Dust and Water Splash Resistance (IP64)
- Fingerprint Sensor (side-mounted)
- 128GB, 256GB Built-in Storage
- 4G LTE Support
- 33W Fast Charging Capacity
- 7000 mAh Si/C Non-removable Battery
Design
The Xiaomi Redmi 15 features a “quad-curved” back for a softer in-hand feel, along with a side-mounted fingerprint reader. The camera area uses an aluminium-alloy deco for a tidier, more premium look.
Color options include Sandy Purple, Titan Gray, and Midnight Black. Rated IP64, it is protected against dust and water splashes. The dimensions are 169.48 × 80.45 × 8.40 mm, and the weight is 214 grams.
Redmi’s design language takes a step up here. The Xiaomi Redmi 15 features a slim, flat-edged frame with a matte finish that resists fingerprints and enhances grip, along with a minimalist camera island that appears cleaner in photos and on the desk.
Display
Up front, the Xiaomi Redmi 15 features a 6.9-inch FHD+ (2340×1080) DotDisplay at ~374 ppi that can ramp up to 144 Hz refresh rate (AdaptiveSync) for smoother scrolling and gaming, with up to 288 Hz touch sampling for quicker response.
Typical brightness is 700 nits, with a maximum of 850 nits. Eye-comfort extras include DC dimming and TÜV Rheinland Low Blue Light, Flicker-Free, and Circadian-Friendly certifications. Wet Touch 2.0 helps the screen respond accurately even with damp fingers.
Camera
On the back, the Xiaomi Redmi 15 pairs a 50-megapixel main camera (f/1.8, 5P lens) with a support sensor, delivering straightforward point-and-shoot reliability.
Video recording goes up to 1080p at 30 fps. The 8-megapixel front camera supports HDR, Portrait mode, a soft-light ring, and 1080p video. Xiaomi’s marketing highlights “Auto night mode” and “Dynamic shots” to stabilize and brighten casual low-light snaps.
Hardware and Software
Xiaomi Redmi 15 4G runs on a Qualcomm Snapdragon 685 octa-core processor built on a 6nm process. The chipset offers a Cortex-A73 quad-core processor clocked at up to 2.8GHz and a Cortex-A73 quad-core processor clocked at up to 1.9GHz, combined with an Adreno 620 GPU, delivering smooth operation for daily apps and multitasking.
RAM/storage trims include 6 GB + 128 GB, 8 GB + 128 GB, and 8 GB + 256 GB (LPDDR4X + UFS 2.2), with a microSD slot supporting up to 2 TB. “Memory extension” can virtually expand the 8 GB model to 16 GB for smoother app multitasking.
The Xiaomi phone ships with Xiaomi HyperOS 2 and long-term system optimizations for a “like-new” feel over time.
Battery and Charging
The 7,000 mAh Si/C battery is undoubtedly the highlight of this device. This should offer a comfortable full day for heavy users or up to two and a half days for average users. It supports 33W fast charging to get you going quickly when you need to recharge. Note that the charge adapter is not included in the box.
The 18W reverse charging ensures the budget-friendly Android phone can double as a practical portable charger for quickly topping up your other devices. Xiaomi promises 46 hours of calls and resilience in low-temperature scenarios, along with Battery Health features and smart charging protections.
Connectivity
For connectivity, the Xiaomi Redmi 15 supports dual-SIM (SIM1 + hybrid SIM/microSD), 2G/3G/4G LTE with region-dependent bands, dual-band Wi-Fi (2.4 GHz and 5 GHz), Bluetooth 5.0, USB-C, and a standard security suite (side fingerprint + AI face unlock).
The Redmi 15 is built for people who prioritize battery life, screen size/refresh rate, and practical durability over flashy extras. With Snapdragon 685 efficiency, 7000 mAh stamina, 33 W fast charging plus 18 W reverse charging, IP64 protection, and roomy storage expansion, it’s a strong everyday 4G choice in the value segment, especially if you stream, read, and game for long stretches.
Where to Buy Xiaomi Redmi 15
Amazon US – See Offers | Amazon UK – See Offers
Xiaomi Redmi 15 Price and Availability
Xiaomi Redmi 15 price starts at around $162 at leading retailers. You can buy the model with 6GB RAM and 128GB ROM for around $162.50, €131.99, and £109.00 at Amazon stores in the United States, Germany, and the United Kingdom, respectively. Xiaomi Redmi 15 price in Nigeria starts at around ₦186,399 for the model with 128GB ROM and 6GB RAM.
You can buy the Redmi 15 in Nigeria at Jumia, Jiji, Parktel, 3CHub, Fine Brothers, Slot, Justfones, Revenes, and Pointek. The smartphone is available at physical stores in Lagos, Abuja, Enugu, Port Harcourt, Kano, Kaduna, Ibadan, and other cities in Nigeria.
Xiaomi Redmi 15 Specs
Here are a few specs of the Xiaomi Redmi 15:
General Features
- Platform: Android 15, HyperOS 2
- Processor: Qualcomm SM6225 Snapdragon 685 (6 nm) Octa Core Processor (2.8 GHz quad-core Cortex-A73 and 1.9 GHz quad-core Cortex-A53)
- GPU: Adreno 610
- Memory: 6GB, 8GB
- Colors: Midnight Black, Titan Gray, Sandy Purple
- Dimension: 171.1 x 82.1 x 8.6 mm
- Weight: 224 g
- SIM Type: Dual SIM
- SIM Count: Nano SIM
Display
- Display: 6.9 inches IPS LCD Display, 1080 x 2340 pixels (~374 ppi density), ~83.2% screen-to-body ratio, 144Hz Refresh Rate, 700 nits (typ), 850 nits (HBM) Brightness
- Screen Protection: Yes (Glass)
- Foldable Display: No
Camera
- Rear Camera: 50 MP (wide), f/1.8, PDAF Camera, Support Lens
- Rear Camera Features: LED Flash, HDR, 1080p@30fps
- Front Camera: 8 MP (wide) f/2.0 Camera, HDR, 1080p@30fps
Storage
- Built-in Storage: 128GB, 256GB
- Memory Card Support: Yes, microSDXC (hybrid)
- Bundled Cloud Storage: –
Network Support
- 2G GSM: GSM 850 / 900 / 1800 / 1900 – SIM 1 and SIM 2
- 2G CDMA 1X: –
- 3G WCDMA: HSDPA 850 / 900 / 2100
- 3G CDMA EVDO: –
- 4G LTE: Yes, LTE Bands 1, 3, 5, 7, 8, 20, 28, 38, 40, 41
- 5G: No
Internet and Connectivity
- GPRS: Yes
- EDGE: Yes
- 3G/WCDMA/HSPA: Yes
- HSPA+: Yes
- CDMA EVDO: –
- 4G LTE: Yes
- 5G: No
- WLAN: Yes, Wi-Fi 802.11 a/b/g/n/ac, dual-band
- Wi-Fi Hotspot: Yes
- Bluetooth: Yes Bluetooth 5.4, A2DP, LE
- NFC: Yes (market/region dependent)
- Infrared Blaster: –
- USB Port: Yes, USB Type-C 2.0
Messaging
- SMS/MMS: Yes
- Instant Messaging: Yes
- Push Emails: Yes
- Email Protocol: –
Entertainment
- Music Player: Yes
- Video Player: Yes
- FM Radio: Yes
- Loudspeaker: Yes
- 3.5mm Jack: No
Navigation
- Navigation: Yes, GPS, GLONASS, GALILEO, BDS
- Maps: Yes
Sensors and Control
- Digital Compass: Yes
- Accelerometer: Yes
- Proximity Sensor: Yes
- Light Sensor: Yes
- Barometer: –
- SpO2: –
- Pedometer: –
- Heart Rate Monitor: –
- Gyroscope: –
- Fingerprint Scanner: Yes, (side-mounted)
- Iris Scanner: –
- Face Unlock: Yes
- Stylus Pen: –
- Intelligent Digital Assistant: Yes
- Motion Sensing / Gesture Control: Yes
- Voice Control: Yes
Other Features
- Video Streaming: Yes
- Active Noise Cancellation: –
- Wireless Charging: –
- Built-in Mobile Payment: –
- Water Resistant: Yes, Water Splash Resistance (IP64)
- Dust Resistant: Yes, IP64
- Image Editor: Yes
- Video Editor: Yes
- Document Viewer: –
- Document Editor: –
Battery
- Battery: 7000 mAh Si/C Non-removable Battery
- Talktime: –
- Standby Time: –
- Fast Charging: 33W Fast Charging Capacity (Power Delivery)
