Xiaomi Redmi K40

Connectivity & Networking

The Xiaomi Redmi K40 supports GSM / CDMA / HSPA / CDMA2000 / LTE / 5G on these bands:

• GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800
• HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1x
• 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42
• 1, 3, 28, 41, 77, 78 SA/NSA/Sub6

Xiaomi Redmi K40 connectivity options

• Wi-Fi: Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, hotspot
• Bluetooth: 5.1, A2DP, LE
• GPS: Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC
• NFC: Yes
• USB: USB Type-C 2.0, USB On-The-Go

Xiaomi Redmi K40 Design

The phone measures 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) and weighs 196 g (6.91 oz). Build: Corning Gorilla Glass 5. SIM: Dual SIM (Nano-SIM, dual stand-by). Colours: Black, White, Aurora. Sensors: Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum.

Display and Processor

The display measures 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) with a resolution of 1080 x 2400 pixels, 20:9 ratio (~395 ppi density). Panel type: Super AMOLED, 120Hz, HDR10+, 1300 nits (peak).

It runs Android 11, MIUI 12. The chipset is the Qualcomm SM8250-AC Snapdragon 870 5G (7 nm) with an octa-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585) CPU.

Memory

The Xiaomi Redmi K40 comes with 8GB RAM and 128GB/256GB/512GB, UFS 3.1 storage.

Camera

The main camera has 3 lenses:

• 48 MP, f/1.8, 26mm (wide), 1/2", 0.8µm, PDAF
• 8 MP, f/2.2, 119˚ (ultrawide)
• 5 MP, 50mm (macro), 1/5.0", 1.12µm

Camera features: Continuos Shooting, High Dynamic Range mode (HDR), Exposure compensation, ISO control, Digital Zoom, Auto Flash, Face detection, Touch to focus,.

Selfie camera: 20 MP, (wide), 1/3.4", 0.8µm.

Battery

The Xiaomi Redmi K40 has a Li-Po 4520 mAh, non-removable battery with Fast charging 33W, 100% in 52 min (advertised), Power Delivery 3.0, Quick Charge 3+ charging. Loudspeaker: Yes.