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The India-market vivo Y400 5G is the stronger spec-sheet pick for battery capacity, charging wattage and ingress ratings; the Samsung Galaxy A27 5G stands out for its published software-support commitment, listed chipset and microSD expansion. The comparison needs a market caveat: Indonesia’s phone is called vivo Y400, but it has different specifications from India’s Y400 5G.

First, identify the right vivo Y400

This comparison uses the India-market vivo Y400 5G and the Galaxy A27 5G specifications published by Samsung US. Vivo’s Indonesia-market Y400 is a different model: it lists Snapdragon 685, 44 W charging and UFS 2.2 storage, rather than the India Y400 5G’s Snapdragon 4 Gen 2, 90 W charging and UFS 3.1. Prices and specifications for one market should not be applied to the other.

The comparison below is therefore useful for weighing the published hardware and policies, not for assuming that every local retail configuration is identical. Samsung’s storage figures come from its US specification table; check the Samsung SKU sold in your country before buying.

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Specs at a glance

Specification vivo Y400 5G (India) Samsung Galaxy A27 5G (Samsung US specification)
Processor Snapdragon 4 Gen 2, 4 nm Snapdragon 6 Gen 3, 4 nm
Display 6.67-inch AMOLED, FHD+, up to 120 Hz; 1,800-nit local peak brightness 6.7-inch Super AMOLED, FHD+, up to 120 Hz; peak-brightness figure not stated in the cited Samsung specification table
Battery and charging 6,000 mAh typical; up to 90 W charging 5,000 mAh typical; 25 W fast charging
Water and dust rating IP68 and IP69 IP64
Rear cameras 50 MP main + 2 MP secondary 50 MP OIS wide + 5 MP ultra-wide + 2 MP macro
Front camera 32 MP 12 MP
Storage configurations listed 8 GB RAM with 128 GB or 256 GB storage; no ROM expansion listed US table: 6 GB RAM with 128 GB storage; microSD support up to 2 TB
Software shown Android 15 / Funtouch OS 15 Android 16 / One UI 8.5
Published update commitment Duration not stated in the cited Vivo material Up to six generations of OS/One UI upgrades and up to six years of security updates from initial global launch

These are manufacturer-listed specifications, not results from controlled tests. In particular, display brightness figures may use different methods, and megapixel counts do not establish which phone takes better photos.

#1 Best Overall
Lucyliy Compatible with vivo Y400 5G /4g Phone Case [Shockproof Design][Magnetic Stand, Sliding Window for Lens] Black
  • Dual-layer hard PC + Flexible TPU bumper design. Protect your phone from drops, scratches and bumps. Military-Grade protection with Air-Cushion technology precisely compatible with your device
  • [Multifunction] Metal kickstand can rotate 360°, easy to rotate and sturdy on the case
  • There is a push window design at the camera, which can effectively protect the camera of the phone.Built in kickstand gives you the convenience to watch videos and movies hands-free with desired and stability
  • [Support Magnetic Car Mount] There is a built-in metal patch that can easily attach your phone directly to the magnetic car mount (Magnetic car mount not included)
  • Precise cutouts for improved access to all ports, buttons, cameras, speakers, and mics ensure quick access and feedback to your phone.

Which phone has the bigger battery and faster charging?

On the listed figures, the vivo Y400 5G leads in both categories: Vivo specifies a 6,000 mAh typical battery and up to 90 W charging for the India model, while Samsung lists a 5,000 mAh typical battery and 25 W charging for the Galaxy A27 5G in its US specification table. Vivo says the India product’s included standard charger supports up to 90 W.

That is a comparison of rated capacity and charging support, not proof of longer battery life or a particular time to full charge. Actual runtime and charging depend on usage and conditions; no comparable independent battery or charging test for these exact variants is established here.

Rank #2
linsuyu Case Compatible with Vivo Y400 5G, Compatible with Vivo Y400 5G Matte Leather Phone Case Gray.
  • Compatible with Vivo Y400 5G 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.

Which has better water and dust resistance?

The India Y400 5G lists IP68 and IP69, compared with IP64 for the Galaxy A27 5G. These ratings indicate a higher stated level of ingress protection for Vivo, but neither phone should be described as waterproof or treated as immune to liquid damage.

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Vivo specifically advises using the Y400 5G for underwater photography only in fresh water, at a maximum depth of 2 metres and for no more than 30 minutes per use. It also states that damage caused by liquid immersion is not covered by the warranty. Those limits do not guarantee that a particular incident will be covered.

Rank #3
linsuyu Case Compatible with vivo Y400 5G, Compatible with vivo Y400 5G Magnetic Ring Phone Case Yellow
  • Compatible with vivo Y400 5G Phone Case Cover
  • Magnetic ring design. Compatible with most wireless magnetic products on the market, such as wireless chargers, magnetic car mounts, magnetic batteries, and magnetic wallets.
  • The phone case features a dual-layer TPU+PU construction for a comfortable, non-slip feel. Corner airbags provide drop protection to safeguard your device.
  • Perforated design enhances airflow for accelerated heat dissipation. Precise cutouts ensure full functionality of all ports, buttons, and cameras.
  • Raised edges around the screen and rear camera elevate these components off the surface, effectively protecting them from scratches.

How do the displays and processors compare?

Display

The displays are close in stated size and refresh rate: Vivo lists a 6.67-inch FHD+ AMOLED panel with a refresh rate up to 120 Hz, while Samsung lists a 6.7-inch FHD+ Super AMOLED panel, also up to 120 Hz. Vivo gives a 1,800-nit local peak-brightness figure; the cited Samsung US table does not state a comparable figure. That difference in published figures is not a direct brightness test.

Processor

Samsung lists the Snapdragon 6 Gen 3, while Vivo lists the Snapdragon 4 Gen 2; both are identified as 4 nm platforms. Samsung’s named platform is the higher-tier one, but that alone does not establish a measured speed advantage in everyday use. The available specifications do not provide comparable benchmark results for these exact phones.

Rank #4
MTRIEBA Compatible with Vivo Y400 5G Phone Case [with Tempered Glass Screen Protector] [2-in-1 Sliding Window - Kickstand Design] Blue
  • Includes a high-definition 9H screen protector made from 9H-hardness tempered glass, which effectively resists everyday scuffs, key scratches and accidental knocks, keeping your screen looking as good as new for years to come
  • Military-grade drop protection: a hard PC back panel and soft TPU frame combined with shock-absorbing air cushions, plus raised edges to protect the screen and camera lens, providing robust defence against drops, knocks and everyday wear and tear.
  • Smooth sliding, secure latching: Precision runners + anti-loosening latches ensure smooth, jam-free sliding and a secure, spring-loaded lock that won’t pop open, making them durable and long-lasting.
  • Precise cut-outs, slim and non-slip: Full-featured, precise cut-outs that do not interfere with charging or photography; slim with a textured finish for a non-slip grip, portable and not bulky.
  • Innovative 2-in-1 sliding cover and stand: the sliding lens cover doubles as a sturdy folding stand; slide it open to protect against scratches and dust, and close it to instantly transform it into a viewing stand, leaving your hands free for binge-watching or video calls

Which phone has the more flexible cameras?

Samsung lists a 50 MP main camera with optical image stabilization (OIS), plus 5 MP ultra-wide and 2 MP macro cameras. Vivo lists a 50 MP rear main camera and a 2 MP secondary camera. For selfies, Vivo lists a 32 MP front camera and Samsung a 12 MP front camera.

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These configurations identify differences in hardware, not a camera-quality winner. Megapixel counts and the presence of an ultra-wide or OIS do not substitute for comparable image samples or controlled testing, which are not established for these exact variants.

Best Value
MuTouNiao Personalized Customized DIY Phone Case for Vivo Y400 5G Magnetic Flip Wallet Case with Card Holder Kickstand for Vivo Y400 5G Shockproof Cover Multicolor
  • Compatible with Vivo Y400 5G
  • Robust, fashion case for pretecting your cell phone against scratches, drops, bumps, shock and scratching.
  • Slim, form fitting bumper case design with defined edges and smooth finish. Slides easily in and out of pockets.
  • Material: Made of PU leather to offer full protection all around the device.
  • All the features, buttons and sensitivity of your smartphone are accessible and easily operated with the case installed.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

How do storage and software support differ?

Storage

Vivo lists India configurations with 8 GB of RAM and either 128 GB or 256 GB of storage, with no ROM expansion listed. Samsung’s US table lists 6 GB of RAM and 128 GB of storage, plus microSD support up to 2 TB. Samsung’s configuration is the one documented for the US; regional Galaxy A27 SKUs may differ, so verify the local model and capacity before comparing prices.

Software updates

Samsung says the Galaxy A27 5G will receive up to six generations of Android OS and One UI upgrades and up to six years of security updates, with the security period measured from the initial global launch. This is Samsung’s stated policy, not an independent assessment of update delivery. Vivo’s cited India pages show Android 15 with Funtouch OS 15 but do not state a matching support-duration promise.

What is the price difference?

The 91mobiles comparison page displayed India Amazon offers of ₹31,991 for the vivo Y400 5G and ₹30,490 for the Galaxy A27 5G when checked for this comparison: a listed difference of ₹1,501, with Vivo higher. These are changeable retailer listings, not manufacturer prices or guaranteed checkout totals. Check that the two offers are current and for equivalent configurations before deciding on price.

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Samsung’s US announcement gives a separate market reference: the Galaxy A27 5G was announced as available in the US from July 14, with a starting price of $349.99. That is the stated US launch price, not necessarily the current US street price, and it should not be compared directly with India rupee offers. The cited Vivo sources do not establish a comparable official India price.

Which phone should you choose?

  • Choose the India vivo Y400 5G if its listed 6,000 mAh battery, 90 W charging support, IP68/IP69 ratings, or 32 MP front camera matter most to you.
  • Consider the Galaxy A27 5G if Samsung’s stated long update policy, its listed Snapdragon 6 Gen 3 platform, OIS-equipped main camera, or microSD expansion better fits your priorities.
  • Compare local listings carefully if price or storage is decisive: the Vivo and Samsung figures cited here refer to different markets and configurations, and the India offers are volatile.

There is no established direct test here that settles which phone has better real-world performance, camera output or battery life. Treat the decision as a choice between published features and support terms rather than a tested overall winner.

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.