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The vivo S2 has the edge on published display size and resolution, battery capacity, and water-resistance rating. The vivo Y400 Pro 5G is the clearer pick if you want a documented official India-store price and specified 90 W charging. There is no reliable like-for-like price difference to report: an official S2 India price was not established, and third-party listings can change.
vivo Y400 Pro vs vivo S2 5G at a glance
| Specification | vivo Y400 Pro 5G | vivo S2 |
|---|---|---|
| Processor | MediaTek Dimensity 7300, 4 nm | MediaTek Dimensity 7360-Turbo, 4 nm |
| Display | 6.77-inch AMOLED; 2392 × 1080; up to 120 Hz | 17.35 cm (about 6.83 inches), curved OLED; 1.5K; 120 Hz; 449 PPI. vivo describes it as AMOLED and POLED in different parts of its S2 specifications. |
| Battery and charging | 5500 mAh typical capacity; 90 W charging | 7050 mAh; the reviewed official feature page does not state a charging wattage |
| Rear cameras | 50 MP + 2 MP | 50 MP Sony IMX852 main camera + 2 MP bokeh camera |
| Front camera | 32 MP | 32 MP |
| Durability rating | IP65 | IP68 and IP69 under stated laboratory conditions |
| Software information | Android 15 with Funtouch OS 15 | Three generations of OS upgrades and five years of security updates, measured from the local product launch event |
| Official India price verified | ₹31,999 for 8GB+256GB on vivo India Store, observed October 4, 2026; the selected product was shown as unavailable | Not stated on the reviewed official vivo page |
Specifications above come from vivo’s Y400 Pro product page, S2 product page, S2 battery information, and S2 software-support information. Capacity and laboratory ratings describe specified conditions, not guaranteed everyday results.
Which phone has the better display?
On the published specifications, the S2 has the larger, sharper screen: vivo lists a 17.35 cm (about 6.83-inch) curved OLED panel at 1.5K resolution and 449 PPI. The Y400 Pro has a 6.77-inch FHD+ AMOLED screen with 2392 × 1080 resolution. Both list a 120 Hz refresh rate. vivo uses both AMOLED and POLED to describe the S2 panel, so “curved OLED” avoids implying a distinction the product page does not consistently make.
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Performance: two different Dimensity chips, no proven winner
The Y400 Pro uses MediaTek Dimensity 7300, while the S2 uses Dimensity 7360-Turbo; both are specified as 4 nm chips. That naming and process information alone cannot establish which feels faster in everyday use or performs better in games. No comparable independent benchmark test with matched methods, configurations, and software was established.
#1 Best Overall
- Compatible with Vivo Y400 Pro 5G
- Made of high quality polycarbonate (PC) + thermoplastic polyurethane (TPU) to ensure impact resistance, durability and scratch resistance.
- Precise camera hole position design ensures that the lens is fully exposed without blocking any shooting angle, while protecting the camera from damage to the greatest extent.
- Compatible with MagSafe,The integrated strong magnet ensures a secure attachment, Compatible with a variety of magnetic devices, such as wireless chargers, wallets, battery packs, magnetic car mounts. (Cell phones need to support wireless charging to support wireless charging)
- We are committed to producing high quality products, if you encounter any problems when using the products, please feel free to contact us, we will provide you with the most reasonable solutions.
vivo reports an AnTuTu score of 970,000 for the S2’s 8GB+256GB edition using AnTuTu Benchmark V11, but labels the score reference-only and notes that results vary. It is not a sound basis for comparing the phones without a matching Y400 Pro test.
Battery capacity and charging
S2: higher stated capacity
vivo lists a 7050 mAh battery for the S2. That is greater than the Y400 Pro’s 5500 mAh typical capacity, but capacity figures alone do not prove which phone lasts longer in actual use; screen settings, workload, network conditions, and other factors matter.
Y400 Pro: charging wattage specified
The Y400 Pro lists 90 W charging. The reviewed official S2 feature page does not establish a charging wattage, so a charging-speed comparison cannot be made from these specifications. vivo lists a charger in the Y400 Pro box.
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Both phones list a 50 MP main-camera class, a secondary 2 MP rear camera, and a 32 MP front camera. vivo identifies the S2’s main sensor as Sony IMX852 and describes its secondary camera as a bokeh camera; the Y400 Pro page gives the rear resolution as 50 MP + 2 MP. These headline numbers do not establish equivalent image quality, and the available specifications do not provide a like-for-like camera test.
Rank #2
- Compatible with Vivo Y400 Pro Phone Cases
- The phone case features a matte PU leather exterior with a TPU frame and magnetic plate, offering skin-friendly, slim, and comfortable materials.
- The screen edges and camera frame are fully wrapped with elevated protection to effectively prevent scratches. It withstands minor drops, bumps, and impacts.
- Soft-padded edges provide a comfortable grip and resist deformation. Built-in magnetic plate enables use with car mounts and other accessories.
- Stylish appearance meets precise cutouts, allowing full access to all ports and the camera. Buttons offer soft, responsive tactile feedback for effortless operation.
Water and dust resistance: S2 has the higher rating, with limits
The S2 carries IP68 and IP69 ratings under vivo’s stated laboratory conditions; the Y400 Pro is rated IP65. That makes the S2 the higher-rated phone on paper, not a waterproof phone. vivo says of the S2, “The resistance to water is not permanent,” and states that liquid damage is excluded from warranty coverage. vivo also cautions that the Y400 Pro’s protection may decrease over time. Do not treat either rating as a promise that a phone will survive every spill, submersion, or exposure.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Software support
vivo says the S2 will receive three generations of OS updates and five years of security updates. The period is calculated from the product launch event in the country or region where the phone was purchased. The reviewed Y400 Pro specification page lists Android 15 and Funtouch OS 15 but does not give an equivalent support duration, so the evidence does not support claiming the phones have equal update lifetimes.
Price difference and availability in India
What official pricing establishes
On October 4, 2026, vivo India Store displayed the Y400 Pro 5G 8GB+256GB at ₹31,999, including taxes. Its page showed the selected product as unavailable at the time captured. The reviewed official S2 page did not establish an India price or a current retail configuration. Check live stock, seller, configuration, and offers before buying; this snapshot does not establish an available offer today. See the Y400 Pro specifications and vivo India Store listing.
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A 91mobiles comparison page captured October 4, 2026 showed the S2 at ₹39,999 at Amazon and the Y400 Pro at ₹25,991 marked out of stock. These are volatile third-party listings, not confirmed official prices or necessarily current, comparable offers. The S2 configuration was not established in the reviewed snapshot. The figures therefore should not be used to claim a definitive price gap. View the 91mobiles comparison listing.
Quick Recap
Which one should you choose?
- Choose the S2 if the larger, higher-resolution display, larger stated battery capacity, higher published IP rating, or stated software-support term is most important to you.
- Choose the Y400 Pro if you want a specified 90 W charging rate or a documented official India-store price for an 8GB+256GB configuration.
- Compare both in person or through reliable matched reviews if performance or camera quality is decisive; the published specifications do not settle those real-world comparisons.
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.
