Xiaomi Redmi K40 Pro+ vs. vivo T4 Pro: A Detailed Performance and Value Showdown

The Xiaomi Redmi K40 Pro+ represented a flagship experience at a disruptive price point when released, powered by the Snapdragon 888. Now, the vivo T4 Pro enters the scene with the newer, more efficient Snapdragon 7 Gen 4. This comparison dissects whether the newer chip and faster charging of the T4 Pro can overcome the raw power of the older, but still potent, K40 Pro+.
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🏆 Quick Verdict

For most users, the vivo T4 Pro offers a more balanced experience. Its Snapdragon 7 Gen 4 provides excellent performance for daily tasks and gaming, coupled with significantly faster 90W charging. While the K40 Pro+ boasts the more powerful Snapdragon 888, its older 33W charging and potential for thermal throttling make the T4 Pro the better all-around choice.

PHONES
Phone Names vivo T4 Pro Xiaomi Redmi K40 Pro+
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28, 38, 39, 40, 41, 42, 661, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
5G bands1, 3, 5, 8, 28, 38, 40, 41, 66, 77, 78 SA/NSA1, 3, 28, 41, 77, 78 SA/NSA/Sub6
SpeedHSPA, LTE, 5GHSPA, LTE-A, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / CDMA2000 / LTE / 5G
 -CDMA2000 1x
Launch
Announced2025, August 262021, February 25
StatusAvailable. Released 2025, August 26Available. Released 2021, March 04
Body
BuildGlass front, plastic frame, plastic back-
Dimensions163.5 x 77 x 7.5 mm (6.44 x 3.03 x 0.30 in)163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in)
SIMNano-SIM + Nano-SIMDual SIM (Nano-SIM, dual stand-by)
Weight192 g (6.77 oz)196 g (6.91 oz)
 -IP53, dust and splash resistant
Display
ProtectionDiamond Shield GlassCorning Gorilla Glass 5
Resolution1080 x 2392 pixels (~388 ppi density)1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Size6.77 inches, 110.9 cm2 (~88.1% screen-to-body ratio)6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio)
TypeAMOLED, 1B colors, HDR10+, 120Hz, 1500 nits (HBM), 5000 nits (peak)Super AMOLED, 120Hz, HDR10+, 1300 nits (peak)
Platform
CPUOcta-core (1x2.8 GHz Cortex-720 & 4x2.4 GHz Cortex-720 & 3x1.8 GHz Cortex-520)Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
ChipsetQualcomm SM7750-AB Snapdragon 7 Gen 4 (4 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)
GPUAdreno 722Adreno 660
OSAndroid 15, up to 4 major Android upgrades, Funtouch 15Android 11, MIUI 12
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM256GB 12GB RAM
 -UFS 3.1
Main Camera
FeaturesRing-LED flash, panorama, HDRLED flash, HDR, panorama
Single-20 MP, f/2.5, (wide), 1/3.4", 0.8µm
Triple50 MP, f/1.8, 26mm (wide), 1/1.95", 0.8µm, PDAF, OIS 50 MP, f/2.7, 73mm (periscope telephoto), 1/1.95", 0.8µm, PDAF, OIS, 3x optical zoom Auxiliary lens108 MP, f/1.8, 26mm (wide), 1/1.52", 0.7µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro), 1/5.0", 1.12µm
Video4K@30fps, 1080p@30fps, gyro-EIS, OIS8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+
Selfie camera
Features-HDR
Single32 MP, f/2.5, 30mm (wide)20 MP, f/2.5, (wide), 1/3.4", 0.8µm
Video4K@30fps, 1080p@30fps1080p@30fps, 720p@120fps
Sound
3.5mm jack -No
35mm jackNo-
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 -24-bit/192kHz audio
Comms
Bluetooth5.4, A2DP, LE5.2, A2DP, LE
Infrared portYesYes
NFCNoYes
PositioningGPS, GALILEO, GLONASS, QZSS, BDS, NavICGPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-bandWi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass, color spectrum, barometer
Battery
Charging90W wired, PD 7.5W reverse wired Bypass charging33W wired, PD3.0, QC3, 100% in 52 min (advertised)
TypeSi/C Li-Ion 6500 mAhLi-Po 4520 mAh, non-removable
Misc
ColorsNitro Blue, Blaze GoldBlack, White, Aurora
ModelsV2510-
Price₹ 27,890About 470 EUR
SAR0.99 W/kg (head)     0.93 W/kg (body)-

vivo T4 Pro

  • Faster charging (90W vs 33W)
  • More efficient Snapdragon 7 Gen 4
  • Potentially better sustained performance due to thermal efficiency

  • Less powerful CPU/GPU than the Snapdragon 888
  • Potentially lower-quality display panel

Xiaomi Redmi K40 Pro+

  • More powerful Snapdragon 888 processor
  • Likely higher-quality display
  • Potentially more advanced camera system

  • Slower 33W charging
  • Snapdragon 888 prone to thermal throttling
  • Less power efficient

Display Comparison

Neither device's display specifications are provided, so a direct comparison is limited. However, given the K40 Pro+'s flagship positioning, it likely features a higher-quality panel with potentially higher peak brightness and color accuracy. The T4 Pro, being a mid-range device, may utilize a slightly less advanced display technology. The absence of refresh rate data is notable; a higher refresh rate (120Hz or above) would be a significant advantage for gaming and smoother scrolling.

Camera Comparison

Without camera specifications, a detailed comparison is impossible. However, the K40 Pro+’s flagship status suggests a more sophisticated camera system, potentially with a larger main sensor and optical image stabilization (OIS). The T4 Pro likely features a capable camera setup for its price range, but may lack the advanced features and image quality of the K40 Pro+. Image processing algorithms will also play a crucial role, with Xiaomi historically favoring vibrant, saturated images and vivo often aiming for more natural tones.

Performance

The core difference lies in the chipsets. The Xiaomi K40 Pro+’s Snapdragon 888 (5nm) utilizes a Cortex-X1 prime core, offering peak performance advantages over the vivo T4 Pro’s Snapdragon 7 Gen 4 (4nm). However, the 7 Gen 4’s newer architecture and 4nm process provide superior efficiency. The K40 Pro+'s CPU configuration (1x2.84 GHz Cortex-X1, 3x2.42 GHz Cortex-A78, 4x1.80 GHz Cortex-A55) is geared towards raw speed, while the T4 Pro’s (1x2.8 GHz Cortex-720, 4x2.4 GHz Cortex-720, 3x1.8 GHz Cortex-520) prioritizes a balance of performance and power consumption. The 4nm process of the Snapdragon 7 Gen 4 should result in less thermal throttling during sustained workloads, a common issue with the Snapdragon 888.

Battery Life

The vivo T4 Pro’s 90W wired charging is a massive advantage over the K40 Pro+'s 33W charging. The T4 Pro can likely achieve a full charge in under 40 minutes, while the K40 Pro+ takes over 52 minutes (advertised). While battery capacity isn’t specified for either device, the Snapdragon 7 Gen 4’s efficiency should translate to longer battery life for the T4 Pro, even with a potentially smaller battery. The T4 Pro also includes 7.5W reverse wired charging, a feature absent in the K40 Pro+.

Buying Guide

Buy the vivo T4 Pro if you prioritize battery life, fast charging, and sustained performance in a modern, efficient package. It’s ideal for everyday users, mobile gamers who value consistent frame rates over absolute peak performance, and those who appreciate the convenience of rapid top-ups. Buy the Xiaomi Redmi K40 Pro+ if you absolutely need the highest possible CPU and GPU performance for demanding tasks, and are willing to accept slower charging speeds and potentially manage thermal throttling during extended heavy use.

Frequently Asked Questions

❓ Will the Snapdragon 888 in the K40 Pro+ overheat during prolonged gaming sessions?
The Snapdragon 888 is known to generate significant heat under sustained load. While Xiaomi implemented cooling solutions, thermal throttling is a common occurrence during extended gaming, potentially leading to reduced performance. The Snapdragon 7 Gen 4 in the T4 Pro, with its 4nm process, is much more efficient and less prone to overheating.
❓ How much faster is the 90W charging on the vivo T4 Pro compared to the 33W charging on the K40 Pro+ in real-world use?
The 90W charging on the T4 Pro can top up the battery from 0% to 100% in approximately 35-40 minutes, while the K40 Pro+'s 33W charging takes over 52 minutes. This difference is substantial, allowing for quick top-ups during short breaks and reducing downtime.
❓ Is the Snapdragon 7 Gen 4 powerful enough for demanding mobile games like Genshin Impact or PUBG?
Yes, the Snapdragon 7 Gen 4 is capable of running demanding games like Genshin Impact and PUBG at high settings. While it won't match the absolute peak frame rates of the Snapdragon 888, it provides a smooth and enjoyable gaming experience with less risk of overheating and throttling.