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On paper, the vivo Y31t 5G wins on battery size and water resistance, while the OPPO K14x 5G lists a slightly faster nominal charging rate. Both have a roughly 6.75-inch 120Hz LCD. This comparison covers the India-market models only, using manufacturer specifications. No matched head-to-head tests were verified, so it makes no claim about which phone is faster or lasts longer in real use.
Specs side by side
| Spec | OPPO K14x 5G | vivo Y31t 5G |
|---|---|---|
| Chipset | MediaTek Dimensity 6300 | Qualcomm Snapdragon 4 Gen 2 |
| Battery | 6500mAh typical (6335mAh rated) | 7200mAh typical (7060mAh rated) |
| Charging | 45W (OPPO launch material) | 44W FlashCharge; charger included in the box per vivo |
| Display | 6.75-inch HD+ LCD, up to 120Hz, peak brightness up to 1125 nits (OPPO, lab-measured, varies) | 6.75-inch, 1608×720 LCD, up to 120Hz |
| Cameras | 50MP rear (OPPO launch page) | 50MP + 2MP rear, 8MP front |
| Dust/water rating | IP64 (splash and dust) | IP68/IP69 (IEC 60529, per vivo) |
| Weight | Not stated in the OPPO source | 219g |
Sources: OPPO K14x product page, OPPO launch announcement and vivo Y31t specifications.
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Battery and charging
vivo’s 7200mAh typical (7060mAh rated) cell is the larger of the two; OPPO lists 6500mAh typical (6335mAh rated). That is about 10% more capacity in vivo’s favour on either measure. Capacity is not runtime, though: the chip, screen tuning and software all affect it.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOPPO’s 2 February 2026 launch announcement cites up to 17.6 hours of YouTube playback, 16.1 hours of Google Maps navigation and 12.1 hours of WhatsApp video calling. These are OPPO’s own tests, not a controlled comparison with vivo, so don’t set them against any vivo figure. The 45W versus 44W gap is too small to matter on paper, and no matched charge-time test was verified.
#1 Best Overall
- 6.59 inches, AMOLED, 1B colors, 1256 x 2760 pixels
- 512GB Storage, 12GB RAM
- Android 15, ColorOS 15, Mediatek Dimensity 8350 (4 nm), Octa-core (1x3.35 GHz Cortex-A715 & 3x3.20 GHz Cortex-A715 & 4x2.20 GHz Cortex-A510)
- Rear: 50 MP, f/1.8, 26mm (wide), PDAF, OIS, 50 MP, f/2.8, 80mm (telephoto), PDAF, OIS, 3.5x optical zoom, 8 MP, f/2.2, 15mm, 116˚ (ultrawide), 1/4.0", 1.12µm, AF, Front: 50 MP, f/2.0, 21mm (wide), AF
Processor
The K14x uses the MediaTek Dimensity 6300 and the Y31t uses the Qualcomm Snapdragon 4 Gen 2. Both are entry-level 5G platforms. Without like-for-like benchmarks and thermal testing, the chip names alone don’t show a winner in gaming, multitasking or efficiency.
Display
Both phones pair a 6.75-inch LCD with up to 120Hz refresh. vivo states 1608×720 resolution, and OPPO describes its panel as HD+, which is the same class. OPPO quotes 1125 nits peak brightness, noting it is a lab figure that varies. vivo’s page, as reviewed, gave no equivalent number, so brightness can’t be compared. Also, “up to 120Hz” doesn’t tell you how often each phone actually runs at that rate.
Rank #2
- Compatible with Oppo A6x (India) CPH2823 / A6x 5G CPH2783 / A6t CPH2853 / A6t Pro 4G / K14X 5G CPH2871
- The flexible TPU bezel and PC back case absorbs the impact of an accidental drop and provides complete protection for your phone.
- Built-in 360° swivel stand ring rotates 360 degrees for placement on a desktop or anywhere you work or use media.
- The case has a built-in magnetic function, Compatible with MagSafe ,which can automatically adsorb magnetic charging, making your cell phone charging more convenient and fast. It can easily support magnetic accessories, such as car mounts, wallets, chargers, etc. (The phone itself must have wireless charging function)
- Precise cutouts are designed for easy access to all ports, buttons and camera. The buttons are soft, responsive and easy to press, and are easy to install and remove.
Cameras
Both lead with a 50MP main sensor. vivo adds a 2MP secondary rear camera and an 8MP front camera. The OPPO source reviewed didn’t give a front-camera spec. Megapixel counts don’t indicate image quality, and no sample comparison was verified.
Water and dust protection
This is the clearest hardware difference after battery. OPPO lists IP64, which covers dust and splashes. vivo lists IP68/IP69 under IEC 60529. vivo says the resistance can degrade with wear, and liquid damage from immersion isn’t covered by warranty. So even with the higher rating, treat it as a safeguard against accidents rather than permission to submerge the phone.
Rank #3
- Personalized case for Oppo K14x: Made of TPU silicone, this case offers optimal protection while remaining soft to the touch.
- Customized product methods: (1) Click “Customize Now”. (2) enter your text/image.(3) Choose quantity.(4) Add to cart.
- High-definition designs: Designs are printed with premium eco-friendly inks for a crisp, long-lasting finish. Precise cutouts ensure your phone is fully protected against daily bumps and scratches.
- Unique style: Ideal for Mother's Day, Father's Day, Christmas, wedding, graduation, an ideal gift for family and friends!
- Like all FortiCase products, it not only looks great but also protects your phone from scratches and drops. Simply wipe any stains with a damp cloth to keep the case clean and looking its best.
Price difference
No exact current gap can be given honestly. The vivo India E-store listing for the Y31t 6GB+128GB showed ₹31,499, against a stated MRP of ₹44,999, when checked on 5 October 2026 (vivo store listing). OPPO’s launch announcement gave no K14x price, and no current official OPPO price was established. Third-party sites such as 91mobiles show their own figures, but those weren’t matched against live listings.
For a fair comparison, check both phones on the same day and make sure of the following:
Quick Recap
Best Value
- Personalized case for Oppo K14x: Made of TPU silicone, this case offers optimal protection while remaining soft to the touch.
- Customized product methods: (1) Click “Customize Now”. (2) enter your text/image.(3) Choose quantity.(4) Add to cart.
- High-definition designs: Designs are printed with premium eco-friendly inks for a crisp, long-lasting finish. Precise cutouts ensure your phone is fully protected against daily bumps and scratches.
- Unique style: Ideal for Mother's Day, Father's Day, Christmas, wedding, graduation, an ideal gift for family and friends!
- Like all FortiCase products, it not only looks great but also protects your phone from scratches and drops. Simply wipe any stains with a damp cloth to keep the case clean and looking its best.
Rank #4
![Aroepurt Case for Oppo K14x 5G Phone Case Cover YGH-BQ | with Oppo K14x 5G Case [1*Tempered Glass Screen Protector]Hybrid[Ring Support][Luminous Effect]](https://m.media-amazon.com/images/I/41SfhXGMD8L._SL160_.jpg)
- Absorption of light and sunlight will produce a fluorescent effect in a dark environment.
- Adhesive metal finger ring support [you can choose to stick to Case, or separate use], 360 degree rotation + car bracket magnetic suction
- PC hard back panel + soft silicone frame + four corners Shock Airbags
- The back side is a combination of 4 layers: solid PC, ultra-high definition pattern layer, special process layer, clear and scratch-resistant surface layer
- Case is higher than the camera as well as the screen, providing better flat protection
- The RAM and storage variants are identical.
- Both prices come from the same kind of seller, such as an official store or the same retailer.
- You know whether a price depends on a bank-card offer, exchange bonus or coupon.
Which should you pick?
- Choose the vivo Y31t 5G if you want the biggest battery and the stronger dust and water rating, and its price is no higher than the K14x’s.
- Choose the OPPO K14x 5G if it’s meaningfully cheaper on the day you buy, or if you prefer OPPO’s software and service network. Its specifications don’t show a clear advantage over the Y31t beyond a 1W higher charging figure.
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.
