vivo Y31s vs Xiaomi Redmi Note 9 Pro 5G: A Deep Dive into Budget 5G Performance

Both the vivo Y31s and Xiaomi Redmi Note 9 Pro 5G target the increasingly competitive budget 5G market. While both offer next-generation connectivity at accessible price points, they diverge significantly in their core hardware, particularly in their respective Snapdragon chipsets and charging capabilities. This comparison dissects these differences to determine which device offers the best overall value.
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🏆 Quick Verdict

For most users, the Xiaomi Redmi Note 9 Pro 5G emerges as the stronger contender. Its Snapdragon 750G chipset provides a noticeable performance uplift over the Y31s’ Snapdragon 480, and the significantly faster 33W charging is a game-changer for daily usability. While the Y31s is a capable device, the Redmi Note 9 Pro 5G offers a more refined experience.

PHONES
Phone Names vivo Y31s Xiaomi Redmi Note 9 Pro 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 2100HSDPA 850 / 900 / 1900 / 2100
4G bands1, 3, 4, 5, 8, 28, 34, 38, 39, 40, 411, 3, 5, 7, 8, 34, 38, 39, 40, 41
5G bands1, 3, 28, 41, 77, 78 SA/NSA1, 3, 41, 78, 79 SA/NSA/Sub6
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 CDMA2000 1x CDMA2000 1xEV-DO
Launch
Announced2021, January 122020, November 26
StatusAvailable. Released 2021, January 15Available. Released 2020, December 01
Body
Build-Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
Dimensions164.2 x 75.4 x 8.4 mm (6.46 x 2.97 x 0.33 in)165.4 x 76.8 x 9 mm (6.51 x 3.02 x 0.35 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight185.5 g (6.56 oz)215 g (7.58 oz)
 -IP53, dust and splash resistant
Display
Protection-Corning Gorilla Glass 5
Resolution1080 x 2408 pixels, 20:9 ratio (~400 ppi density)1080 x 2400 pixels, 20:9 ratio (~395 ppi density)
Size6.58 inches, 104.8 cm2 (~84.7% screen-to-body ratio)6.67 inches, 107.4 cm2 (~84.6% screen-to-body ratio)
TypeIPS LCD, 90HzIPS LCD, HDR10, 120Hz, 450 nits (typ)
Platform
CPUOcta-core (2x2.0 GHz Kryo 460 & 6x1.8 GHz Kryo 460)Octa-core (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570)
ChipsetQualcomm SM4350 Snapdragon 480 5G (8 nm)Qualcomm SM7225 Snapdragon 750G 5G (8 nm)
GPUAdreno 619Adreno 619
OSAndroid 11, Funtouch 10.5Android 10, MIUI 12
Memory
Card slotNomicroSDXC (uses shared SIM slot)
Internal64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
 UFS 2.1UFS 2.2
Main Camera
Dual13 MP, f/2.2, (wide), PDAF Auxiliary lens-
FeaturesLED flash, HDR, panoramaDual-LED dual-tone flash, HDR, panorama
Quad-108 MP, f/1.8, 26mm (wide), 1/1.52", 0.7µm, PDAF 8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro) Auxiliary lens
Video4K@30fps, 1080p@30fps4K@30fps, 1080p@30/60fps, gyro-EIS
Selfie camera
FeaturesHDRHDR, panorama
Single8 MP, f/2.0, (wide)16 MP, f/2.5, (wide), 1/3.06", 1.0µm
Video1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes, with stereo speakers
 -24-bit/192kHz audio
Comms
Bluetooth5.1, A2DP, LE, aptX HD5.1, A2DP, LE
Infrared port-Yes
NFCNoYes
PositioningGPS, GLONASS, BDS, GALILEOGPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5)
RadioNoUnspecified
USBUSB Type-C 2.0, OTGUSB Type-C 2.0
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, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (side-mounted), accelerometer, gyro, compass
 -Virtual proximity sensing
Battery
Charging18W wired33W wired, 100% in 58 min
Type5000 mAhLi-Po 4820 mAh
Misc
ColorsRed, Gray, AuroraGray, Blue, Red/Mint
ModelsV2054A, V2068AM2007J17C
PriceAbout 190 EURAbout 370 EUR

vivo Y31s

  • More affordable price point
  • Sufficient for basic smartphone tasks
  • 5G connectivity

  • Slower Snapdragon 480 processor
  • Slower 18W charging
  • Likely inferior camera performance

Xiaomi Redmi Note 9 Pro 5G

  • Faster Snapdragon 750G processor
  • Significantly faster 33W charging
  • Improved camera ISP for better image quality

  • Slightly higher price
  • May not be significantly better for extremely basic tasks
  • Potentially larger physical size

Display Comparison

Neither device boasts a particularly standout display. While specific panel details (like peak brightness or color gamut coverage) are unavailable, both utilize 8nm chipsets which indirectly suggest a focus on efficiency over pushing display boundaries. The Redmi Note 9 Pro 5G likely benefits from the slightly more powerful GPU of the Snapdragon 750G to handle display processing, but the real-world difference will be minimal for typical usage. Bezels are expected to be comparable, typical of this price segment.

Camera Comparison

Without detailed camera specs beyond the chipsets, a direct comparison is challenging. However, the Snapdragon 750G’s image signal processor (ISP) is more advanced than the 480’s, offering better noise reduction, dynamic range, and overall image quality. It’s reasonable to assume the Redmi Note 9 Pro 5G will deliver superior photo and video performance, particularly in low-light conditions. The presence of a more powerful ISP also allows for faster image processing and potentially more advanced features like improved HDR.

Performance

The core difference lies in the chipsets. The Xiaomi Redmi Note 9 Pro 5G’s Snapdragon 750G (8nm) is a significant step up from the vivo Y31s’ Snapdragon 480 (8nm). The 750G features Kryo 570 cores clocked at 2.2 GHz, compared to the 480’s Kryo 460 cores at 2.0 GHz. This translates to approximately 15-20% faster CPU performance in benchmarks and a more substantial improvement in GPU performance, making the Redmi Note 9 Pro 5G the clear winner for gaming and demanding applications. Both utilize an octa-core configuration with a similar 6x1.8 GHz cluster, but the higher clock speeds and architectural improvements of the 750G are crucial.

Battery Life

The Redmi Note 9 Pro 5G’s 33W wired charging is a major advantage. Completing a full charge in 58 minutes significantly reduces downtime compared to the Y31s’ 18W charging. While battery capacity isn’t specified, the faster charging speed effectively mitigates any potential difference in mAh. The Snapdragon 750G’s improved efficiency also contributes to better battery life during active use, further solidifying the Redmi Note 9 Pro 5G’s lead in this category.

Buying Guide

Buy the vivo Y31s if you prioritize a minimalist experience and are primarily focused on basic smartphone tasks like calling, texting, and light social media use. Its lower price point makes it an attractive option for first-time smartphone buyers or those on a very tight budget. Buy the Xiaomi Redmi Note 9 Pro 5G if you value performance, faster charging, and a more versatile experience. This phone is better suited for users who enjoy mobile gaming, streaming video, or frequently use demanding applications.

Frequently Asked Questions

❓ Will the Snapdragon 480 in the vivo Y31s struggle with graphically intensive games like PUBG Mobile?
Yes, the Snapdragon 480 is an entry-level 5G chipset. While it can run PUBG Mobile, you'll likely need to lower the graphics settings to achieve a playable frame rate. The Redmi Note 9 Pro 5G’s Snapdragon 750G offers a much smoother gaming experience at higher settings.
❓ How much faster is the 33W charging on the Redmi Note 9 Pro 5G compared to the 18W charging on the vivo Y31s in real-world use?
The Redmi Note 9 Pro 5G can go from 0-100% in approximately 58 minutes. The vivo Y31s with its 18W charging will likely take well over 2 hours to achieve a full charge. This difference is significant for users who need to quickly top up their battery throughout the day.
❓ Does the Snapdragon 750G in the Redmi Note 9 Pro 5G offer noticeable improvements in app loading times and multitasking?
Absolutely. The Snapdragon 750G’s faster CPU and GPU, combined with potentially faster RAM configurations, result in noticeably quicker app loading times and smoother multitasking compared to the Snapdragon 480. You'll experience less lag when switching between apps.