vivo T4 Pro vs OPPO F31 Pro: Which Should You Buy?

Buy the vivo. The second lens is the entire argument.

Live listings put the T4 Pro at about Rs. 28,000, essentially where it launched, and the F31 Pro between about Rs. 25,500 and Rs. 28,000, a touch under its own Rs. 26,999 launch price. At the top of the OPPO's range these two cost the same money. At the bottom you save perhaps Rs. 2,500, and what you give up for it is a telephoto camera and three years of security patches.

A 3x periscope under Rs. 30,000 is not a spec. It is an anomaly.

Telephoto lenses are the first thing cut when a phone has to hit a price. They need depth, and depth is exactly what a thin mid-ranger does not have, which is why the segment is full of phones offering "10x digital zoom" - a crop, dressed up. The T4 Pro instead folds the light sideways through a periscope and puts a full 50MP sensor with its own OIS behind it, at 3x. Both of its useful lenses are the same Sony IMX882 unit, so the jump to 3x is not the usual drop to a cheaper sensor and a worse photograph.

The F31 Pro gives you one stabilised 50MP f/1.8 main camera, and it is a good one - OIS under Rs. 30,000 is still the line between usable low light and merely acceptable, and OPPO is on the right side of it. Beside it sits a 2MP monochrome sensor whose contribution to your photographs is best described as moral support. So this is a phone with one camera on the back, and one camera on the back is not a scandal; it is just a smaller toolkit than the money can now buy.

Both phones put a 32MP camera on the front, and the vivo records 4K on it. If you shoot video of yourself, that is a second, quieter point to the T4 Pro.

Two good AMOLEDs, and the honest answer is narrower than the numbers suggest.

vivo quotes a 5,000-nit peak against OPPO's 1,400, which looks decisive and is not. Peak brightness is measured on a fraction of the panel, for a fraction of a second, inside an HDR frame. The figure that decides whether you can read a message at a bus stop in May is the full-screen sustained number, and neither company prints that one on the box. So treat 5,000 against 1,400 as a hint about which panel copes better outdoors, and not as a ratio.

Work through the resolutions and the OPPO actually edges it on density: 1080 x 2372 over 6.57 inches is roughly 397 pixels per inch, against roughly 388 for the vivo's 1080 x 2392 across 6.77 inches. Both run at 120Hz. The real difference is shape: the T4 Pro is a larger, quad-curved panel, which some people love and some people find catches stray touches. That one is taste, not merit. If you want the fundamentals, our AMOLED vs LCD guide covers them.

The OPPO's clearest win, and the vivo takes most of it back at the wall.

The F31 Pro carries 7,000mAh against the T4 Pro's 6,500mAh, and does it at about 190g against 192g. That is a genuinely well-engineered result and worth saying without hedging: OPPO has put a larger cell into a lighter phone. On paper, expect the F31 Pro to last a little longer between charges.

Then the refill: 90W against 80W, on a cell that is smaller to begin with. The vivo should get back to usable sooner, and the two effects largely cancel. Neither of these phones is going to embarrass itself on a long day. If your habit is a fifteen-minute top-up before you leave the house, the vivo is the better fit; if it is a charge overnight and forget about it, the OPPO's extra capacity is the one you will notice.

Four upgrades and six years of patches, against two and three.

This is the gap that should worry anyone planning to keep the phone. vivo states 4 Android upgrades and 6 years of security patches for the T4 Pro. OPPO states 2 upgrades and 3 years for the F31 Pro. Both have published a policy, which is more than some rivals manage, but one of these phones stops receiving patches in 2028 and the other keeps going into the 2030s.

Put that next to a price difference of roughly Rs. 2,500 and the arithmetic gets uncomfortable. Three extra years of security updates is not a feature you notice on day one and it is the single thing most likely to decide when you replace the phone.

Snapdragon 7 Gen 4 against Dimensity 7300-Energy, and matched sealing.

Both are upper-mid-range parts that will run everything most people ask of a phone. On tier placement the Snapdragon 7 Gen 4 sits a step ahead of the Dimensity 7300-Energy, particularly for sustained load. We have not benchmarked either phone, so read that as where the silicon sits in its family rather than a measured result.

On durability the two are effectively level: the T4 Pro claims IP68 and IP69, the F31 Pro adds IP66 to the same pair. Either will survive being caught out by the monsoon. This is not the category that should decide anything here.

The vivo is the better phone and, at the top of the OPPO's range, the same money.

Strip out the noise and the T4 Pro wins cameras, charging speed and software support, ties on durability, and loses only on battery capacity and a marginal pixel-density edge. When two phones can cost the same on a given day, that is not a close call. The periscope alone would carry it; the six-year patch window makes it comfortable.

The F31 Pro deserves better than a footnote, though. It has the bigger battery, the lighter body, a properly stabilised main camera and an IP69 seal, and it has drifted slightly below its launch price while most of this segment has gone the other way. If you find it near Rs. 25,500 and you have never once wished your phone could zoom, you are not being fleeced. You are buying a well-made phone with a shorter lifespan and a shorter reach, for less.