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The OPPO K14x 5G has the lower price in one recent retailer snapshot, while the vivo Y31 5G lists stronger dust- and water-ingress protection. They share a 6500mAh-class battery and an HD+ 120Hz LCD, but the available prices are for different retailers and storage configurations—not a like-for-like comparison.
vivo Y31 5G vs OPPO K14x 5G: key specs
| Specification | vivo Y31 5G | OPPO K14x 5G |
|---|---|---|
| Processor | Qualcomm Snapdragon 4 Gen 2 | MediaTek Dimensity 6300 |
| Display | 6.68-inch LCD; 1608 × 720; up to 120Hz; 1000-nit HBM listed by vivo | 6.75-inch HD+ LCD; 120Hz; up to 1125-nit peak brightness claimed by OPPO |
| Battery | 6500mAh typical; 6355mAh rated | 6500mAh |
| Wired charging | 44W FlashCharge | 45W fast charging |
| Ingress protection | IP68 and IP69 | IP64 |
| Rear cameras | 50MP main and 0.08MP secondary | 50MP rear camera, according to OPPO’s launch announcement |
| Front camera | 8MP | 5MP in the 91mobiles comparison listing; confirm the exact SKU |
| Software | Android 15 with Funtouch OS 15 | ColorOS 15 based on Android 15, according to OPPO’s launch announcement |
Specifications are manufacturer-listed unless noted. Brightness figures use different stated descriptions—vivo’s HBM figure and OPPO’s peak figure—so they do not establish which screen will look brighter in the same conditions. Similarly, battery capacity labels and charging wattage do not predict actual endurance or charging time without comparable testing.
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Which phone is cheaper right now?
A 91mobiles comparison snapshot accessed in 2026 showed the vivo Y31 5G at ₹19,999 on Flipkart and the OPPO K14x 5G at ₹17,167 on Amazon. That is a nominal ₹2,832 difference, but the comparison listed 128GB storage for vivo and 64GB for OPPO. It is a dated observation, not a current or like-for-like price guarantee.
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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteThere is also a substantial difference between retailer snapshots: the vivo India Store listed the Y31 5G 6GB+128GB at ₹27,999 when accessed in 2026, with that selected variant shown as unavailable. Retailer, seller, stock, offers, and exact RAM/storage configuration can all change the amount payable. Check live listings for the same configuration before deciding which costs less.
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Which has better water resistance?
The vivo Y31 5G has the stronger stated ingress-protection rating: IP68/IP69, compared with IP64 for the OPPO K14x 5G. These ratings describe tested resistance under specified conditions; they do not make either phone indestructible. vivo notes limitations to its rating and says liquid damage is not covered by warranty, so do not treat the rating as warranty protection.
Do both have a 120Hz display?
Yes. Both are listed with HD+ LCDs and refresh rates up to 120Hz. The OPPO panel is slightly larger at 6.75 inches, versus 6.68 inches on the vivo. vivo lists 1000 nits in HBM mode; OPPO claims peak brightness up to 1125 nits. Because the brightness modes and measurement conditions are not established as equivalent, those figures are not a direct brightness test.
Rank #2
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- 2. Our phone cases are precision-engineered with easy access to all functions. Crafted from high-quality materials with impeccable workmanship.
- 3. Choose from a wide range of vibrant colors for a personalized touch. These cases are built to withstand drops, scratches, and provide a non-slip grip.
- 4. Enjoy a comfortable hold with the ultra-thin design that doesn't compromise on protection. HULLIN offers outstanding value for your money.
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Performance: Snapdragon 4 Gen 2 vs Dimensity 6300
The vivo uses Qualcomm’s Snapdragon 4 Gen 2, while the OPPO uses MediaTek’s Dimensity 6300. The chipset names alone do not establish a real-world speed winner: no standardized independent benchmark comparison is available here. Choose between them based on verified reviews of the exact models and the apps or games you use, rather than inferring performance from maximum clock speed.
Battery and charging differences
Both phones are presented with 6500mAh batteries. vivo distinguishes its capacity as 6500mAh typical and 6355mAh rated; those figures describe different capacity conventions and should not be treated as contradictory. vivo lists 44W FlashCharge, while OPPO announces 45W charging. The one-watt nominal difference does not establish which phone charges faster in practice, and no same-condition charging-time comparison is available.
Rank #3
- 1. Introducing HULLIN Phone Cases, exclusively designed for vivo Y31 5G / vivo Y31e 5G / vivo Y21d. Check product images before purchasing to confirm your phone model.
- 2. Our phone cases are precision-engineered with easy access to all functions. Crafted from high-quality materials with impeccable workmanship.
- 3. Choose from a wide range of vibrant colors for a personalized touch. These cases are built to withstand drops, scratches, and provide a non-slip grip.
- 4. Enjoy a comfortable hold with the ultra-thin design that doesn't compromise on protection. HULLIN offers outstanding value for your money.
- 5. Elevate your phone's style and durability with HULLIN Phone Cases. Order now for a stylish and functional accessory.
OPPO’s 2 February 2026 launch announcement reports manufacturer-measured K14x results of up to 20.9 hours of screen-off calling, 17.6 hours of YouTube playback, 16.1 hours of Google Maps navigation, and 12.1 hours of WhatsApp video calling. OPPO’s product page separately lists around 22.4 hours of online video, 11.1 hours of MOBA gaming, 51.4 hours of screen-off calls, and 882.1 hours of standby, subject to the page’s test assumptions and footnotes. These are OPPO claims, not independent or directly comparable results against vivo; individual runtime depends on usage and conditions.
Cameras and storage: check the exact variant
Both phones have a listed 50MP rear camera, but megapixel counts do not establish image quality. No controlled side-by-side camera test is available to determine which produces better photos. The 91mobiles comparison lists an 8MP front camera for vivo and 5MP for OPPO; verify the K14x figure against the exact local SKU if selfie-camera resolution matters.
Rank #4
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vivo’s official listing offers 4GB+128GB, 6GB+128GB, and 6GB+256GB configurations. The 91mobiles comparison snapshot uses a 4GB+64GB OPPO K14x listing, but that secondary listing should not be assumed to cover every market or SKU. Confirm the RAM and storage shown by the seller before comparing prices or buying.
Software and updates
vivo lists Android 15 with Funtouch OS 15; OPPO’s launch announcement describes ColorOS 15 based on Android 15. Comparison coverage reports two years of OS updates and three years of security support for OPPO, but confirm those terms in current official support information for the exact model and region. Interface preference and support commitments may matter more than the shared Android version.
Quick Recap
Best Value
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Which phone should you choose?
- Consider the vivo Y31 5G if its IP68/IP69 rating, listed 8MP front camera, or available higher-storage configurations better suit your needs. Confirm the price and stock for the exact variant.
- Consider the OPPO K14x 5G if a lower observed marketplace price or its slightly larger display is more important. Verify the current listing, storage configuration, and seller before treating it as the cheaper option.
- Do not choose on presumed camera, speed, or battery-life superiority based only on megapixels, processor names, or manufacturer endurance figures; the available evidence does not provide controlled comparisons for those outcomes.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
