Xiaomi Redmi K40 vs Oppo Reno15

579 USD

579 USD

Available

Available

Xiaomi Mobiles

Oppo Mobiles

M2012K11C

CPH2825

2021, March 04

2026, January 02

GSM / CDMA / HSPA / CDMA2000 / LTE / 5G

GSM / CDMA / HSPA / LTE / 5G

GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2, CDMA 800

GSM 850 / 900 / 1800 / 1900

HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100, CDMA2000 1x

HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International HSDPA 900 / 2100 - Asia

1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42

HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 - International HSDPA 850 / 1700(AWS) / 2100 - China

1, 3, 28, 41, 77, 78 SA/NSA/Sub6

1, 2, 3, 5, 7, 8, 20, 26, 28, 38, 40, 41, 48, 66, 71, 77, 78, 80, 83 SA/NSA - International 1, 3, 5, 8, 40 SA/NSA - Asia

HSPA 42.2/5.76 Mbps, LTE-A, 5G

HSPA, LTE, 5G

163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)

158 x 74.8 x 7.8 mm (6.22 x 2.94 x 0.31 in)

196 g (6.91 oz)

197 g (6.95 oz)

IP53, dust and splash protection, Corning Gorilla Glass 5

Corning Gorilla Glass 7i, Mohs level 5 IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min)

Dual SIM (Nano-SIM, dual stand-by)

Nano-SIM + Nano-SIM + eSIM (max 2 at a time)

Black, White, Aurora

Aurora Blue, Twilight Blue, Aurora White

Super AMOLED, 120Hz, HDR10+, 1300 nits (peak)

AMOLED, 1B colors, 120Hz, HDR10+, 600 nits (typ), 1200 nits (HBM)

6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio)

6.59 inches, 105.6 cm2 (~89.4% screen-to-body ratio)

1080 x 2400 pixels, 20:9 ratio (~395 ppi density)

1256 x 2760 pixels (~460 ppi density)

8GB/12GB

8GB

128GB/256GB, UFS 3.1

256GB/512GB UFS 3.1

No

64 MP, f/1.9, 26mm (wide), 1/1.7", 0.8µm, PDAF

50 MP, f/1.8, 26mm (wide), PDAF, OIS

8 MP, f/2.2, 119˚ (ultrawide)

50 MP, f/2.8, 80mm (telephoto), PDAF, OIS, 3.5x optical zoom

5 MP, 50mm (macro), 1/5.0", 1.12µm

8 MP, f/2.2, 15mm, 116˚ (ultrawide), 1/4.0", 1.12µm, AF

Digital Zoom, Auto Flash, Face detection, Touch to focus, Exposure compensation, ISO control

Color spectrum sensor, LED flash, HDR, panorama

8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+

4K@30/60fps, 1080p@30/60/120fps, gyro-EIS, HDR

20 MP, (wide), 1/3.4", 0.8µm

50 MP, f/2.0, 18mm (ultrawide), AF

1080p@30fps, 720p@120fps

4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR

Panorama, HDR

Li-Po 4520 mAh, non-removable

6500mAh

Fast charging 33W, 100% in 52 min, Power Delivery 3.0, Quick Charge 3+

80W wired, 80W UFCS, 55W PPS, 13.5W PD, 13.5W QC, 100% in 50 min Reverse wired

Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum, barometer

Fingerprint (under display, optical), accelerometer, gyro, proximity, compass

Yes, with stereo speakers

Yes, with stereo speakers

Yes

Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct, hotspot

Wi-Fi 802.11 a/b/g/n/ac, dual-band

5.2, A2DP, LE

5.4, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5

Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC

GPS, GLONASS, GALILEO, BDS, QZSS

Yes

Yes (market/region dependent)

USB Type-C 2.0, USB On-The-Go

USB Type-C 2.0, OTG

Android 16, ColorOS 16

Qualcomm SM7750-AB Snapdragon 7 Gen 4 (4 nm)

Octa-core (1x2.8 GHz Cortex-720 & 4x2.4 GHz Cortex-720 & 3x1.8 GHz Cortex-520)

Adreno 722