Xiaomi Redmi K40S vs Redmi Note 12 Pro 4G: The Ultimate Showdown

Xiaomi offers a wide range of smartphones, often making it tricky to choose between similar models. Today, we're pitting the Redmi K40S, known for its performance, against the Redmi Note 12 Pro 4G, a strong contender in the mid-range segment. Let's dive into a detailed comparison to help you decide which one is right for you.
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🏆 Quick Verdict

The Redmi K40S is the clear winner for performance enthusiasts, boasting a significantly faster Snapdragon 870 chipset. However, the Note 12 Pro 4G offers a more modern design and potentially better camera features, making it a compelling choice for those prioritizing aesthetics and a balanced experience at a potentially lower price.

PHONES
Phone Names Xiaomi Redmi K40S Xiaomi Redmi Note 12 Pro 4G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 421, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41, 66
5G bands1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA-
SpeedHSPA, LTE, 5GHSPA, LTE
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / HSPA / LTE
 CDMA2000 1x -
Launch
Announced2022, March 172023, March 03
StatusAvailable. Released 2022, March 17Available. Released 2023, April 11
Body
BuildGlass front (Gorilla Glass 5), plastic back-
Dimensions163.2 x 76 x 7.7 mm (6.43 x 2.99 x 0.30 in)164.2 x 76.1 x 8.1 mm (6.46 x 3.00 x 0.32 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight195 g (6.88 oz)201.8 g (7.13 oz)
 Splash resistant-
Display
ProtectionCorning Gorilla Glass 5-
Resolution1080 x 2400 pixels, 20:9 ratio (~395 ppi density)1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Size6.67 inches, 107.4 cm2 (~86.6% screen-to-body ratio)6.67 inches, 107.4 cm2 (~86.0% screen-to-body ratio)
TypeAMOLED, 120Hz, HDR10+, 1300 nits (peak)AMOLED, 120Hz, Dolby Vision, 700 nits (HBM), 1100 nits (peak)
Platform
CPUOcta-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
ChipsetQualcomm SM8250-AC Snapdragon 870 5G (7 nm)Qualcomm SM7150 Snapdragon 732G (8 nm)
GPUAdreno 650Adreno 618
OSAndroid 12, MIUI 13Android 11, MIUI 13
Memory
Card slotNomicroSDXC (uses shared SIM slot)
Internal128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
 UFS 3.1UFS 2.2
Main Camera
FeaturesColor spectrum sensor, Dual-LED dual-tone flash, HDR, panoramaLED flash, HDR, panorama
Quad-108 MP, f/1.9, (wide), 1/1.52", 0.7µm, PDAF 8 MP, 120˚, (ultrawide) 2 MP (macro) Auxiliary lens
Single20 MP, (wide)-
Triple48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF, OIS 8 MP, 119˚ (ultrawide) 2 MP (macro)-
Video4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS4K@30fps, 1080p@30/60fps
Selfie camera
Single20 MP, (wide)16 MP, f/2.4, (wide)
Video1080p@30/120fps1080p@30fps
Sound
3.5mm jack NoYes
35mm jackNoYes
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio-
Comms
Bluetooth5.2, A2DP, LE5.0, A2DP, LE
Infrared port-Yes
NFCYesYes (market/region dependent)
PositioningGPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)GPS, GLONASS, GALILEO, BDS
RadioNoUnspecified
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, compass
Battery
Charging67W wired, PD3.0, QC3, 100% in 38 min67W wired
TypeLi-Po 4500 mAhLi-Po 5000 mAh
Misc
ColorsBlack, Gray, Blue, GreenStar Blue, Graphite Gray, Polar White, Ice blue
Models-‎2209116AG, 2209116AG
PriceAbout 260 EURAbout 150 EUR

Xiaomi Redmi K40S

  • Superior Performance (Snapdragon 870)
  • Fast 67W Charging
  • Vibrant AMOLED Display (120Hz)
  • Good Value for Performance

  • Design might feel dated
  • Camera not the absolute best in class

Xiaomi Redmi Note 12 Pro 4G

  • Modern Design
  • Potentially Higher Resolution Camera
  • Good Battery Life
  • Competitive Price

  • Lower Performance (Snapdragon 732G)
  • May have lower refresh rate display

Display Comparison

The Redmi K40S typically features an AMOLED display with a 120Hz refresh rate, offering vibrant colors and smooth scrolling. The Note 12 Pro 4G usually has an AMOLED display as well, but the refresh rate might be 120Hz or 60Hz depending on the specific variant. Expect similar color accuracy and brightness levels, but the K40S's higher refresh rate provides a slightly more fluid experience.

Camera Comparison

The Note 12 Pro 4G often features a higher resolution main camera sensor (typically 108MP) compared to the K40S (typically 48MP). While megapixels aren't everything, the Note 12 Pro 4G might offer slightly more detail in well-lit conditions. Both phones offer decent image quality, but the K40S's processing might be slightly more consistent.

Performance

This is where the K40S truly shines. The Snapdragon 870 is a flagship-level chipset that handles demanding games and multitasking with ease. The Note 12 Pro 4G's Snapdragon 732G is a capable mid-range chip, but it won't match the K40S's raw power. Expect noticeable differences in gaming performance and app loading times.

Battery Life

Both phones offer 67W fast charging, promising quick top-ups. Battery capacity is generally similar, around 4500-5000mAh. Expect all-day battery life from either device with moderate usage.

Buying Guide

The Xiaomi Redmi K40S is ideal for gamers, power users, and anyone who demands smooth performance and fast charging. The Redmi Note 12 Pro 4G is a great option for everyday users who want a stylish phone with a decent camera and good battery life, without breaking the bank.

Frequently Asked Questions

❓ Is the Redmi K40S worth the extra money?
If performance is your top priority, then yes. The Snapdragon 870 offers a significant upgrade over the 732G. If you're on a tighter budget and don't need the extra power, the Note 12 Pro 4G is a solid alternative.
❓ Does the Redmi Note 12 Pro 4G support 5G?
No, the Redmi Note 12 Pro 4G is a 4G-only device. The Redmi K40S supports 5G connectivity.