Vivo Y31d Specs: Battery, Display & Regional Variants

The Vivo Y31d is a budget-to-midrange Android smartphone that Vivo released in 2021, primarily for the Indian and Southeast Asian markets. This article details its full specifications—display, battery, camera, chipset, and storage—and clarifies how the Y31d differs from the closely related Y31 and Y31s models across regions.

Key Specifications at a Glance

Here is the complete spec sheet for the Vivo Y31d as sold in India (model V2117).

• Display: 6.58-inch IPS LCD, 1080 x 2408 pixels (FHD+), 401 ppi, 90Hz refresh rate
• Processor: Qualcomm Snapdragon 662 (11nm, octa-core, up to 2.0 GHz)
• GPU: Adreno 610
• RAM: 4 GB or 6 GB LPDDR4x
• Storage: 64 GB or 128 GB eMMC 5.1, expandable via microSD (dedicated slot)
• Rear Camera: Triple: 50 MP main (f/1.8), 2 MP macro (f/2.4), 2 MP depth (f/2.4)
• Front Camera: 16 MP (f/2.0)
• Battery: 5000 mAh, non-removable, 18W fast charging (FlashCharge)
• Operating System: Funtouch OS 12 (based on Android 12) at launch; later updated to Funtouch OS 13 (Android 13)
• Connectivity: Dual-SIM (nano), 4G VoLTE, Wi-Fi 802.11 a/b/g/n/ac (dual-band), Bluetooth 5.0, GPS, USB-C 2.0, 3.5mm headphone jack
• Sensors: Side-mounted fingerprint, accelerometer, proximity, compass
• Dimensions: 163.8 x 75.3 x 8.4 mm
• Weight: 190 g

Display: 90Hz FHD+ IPS Panel

The Y31d uses a 6.58-inch IPS LCD with a 90Hz refresh rate. This is one of its strongest selling points at its price tier, as most competing phones in 2021 shipped with 60Hz panels. The resolution is 1080 x 2408, giving a sharp 401 pixels-per-inch density. Brightness peaks around 480 nits, which is usable outdoors but not exceptional. The display supports HDR10 playback on streaming apps, though the panel’s contrast ratio is typical for IPS—not as deep as AMOLED.

Battery Life and Charging

The 5000 mAh battery is the Y31d’s other headline feature. With the power-efficient Snapdragon 662 and a 90Hz panel, real-world usage typically yields 1.5 to 2 days on a single charge for moderate use (social media, calls, web browsing). Heavy gaming or continuous video streaming will drop that to about a day.

Charging is capped at 18W via USB-C. A full charge from 0% takes roughly 1 hour 40 minutes. There is no wireless charging. The phone also supports reverse charging (OTG) to power small accessories, but not other phones at meaningful speed.

Regional Variants: Y31, Y31s, and Y31d

Vivo launched several phones under the “Y31” name across different markets, and the differences matter when buying used or imported units.

• Vivo Y31 (2021) – India/Indonesia: This is the model often called “Y31” without a suffix. It has the same Snapdragon 662, 5000 mAh battery, and 6.58-inch 90Hz display as the Y31d, but its rear camera is 48 MP, not 50 MP. It also ships with Funtouch OS 11 (Android 11) out of the box.
• Vivo Y31s (2021) – China: A different device with a 6.51-inch 90Hz LCD (720p resolution), a 13 MP main camera, and a smaller 5000 mAh battery. It uses the Snapdragon 480 5G chipset, so it supports 5G networks. This model is not sold in India.
• Vivo Y31d (2021) – India: The subject of this article. It is essentially a Y31 with a 50 MP main camera and Android 12 out of the box. The “d” likely stands for “different” or “dual” to differentiate it from the earlier Y31.
• Vivo Y31A / Y31L (older models): These are 2015-2016 budget phones with 5-inch 720p displays and quad-core processors. They share the name but are completely unrelated to the 2021 models.

When buying a used phone, always check the model number in Settings > About Phone. The Y31d is model V2117. If you see V2111, that is the standard Y31.

Performance and Software

The Snapdragon 662 is a 2019-era midrange chip built on an 11nm process. It handles everyday tasks smoothly—social media, YouTube, WhatsApp, and light multitasking are fine. Gaming is the weak point: PUBG Mobile runs at low graphics settings with occasional frame drops, and Genshin Impact is not playable at a stable frame rate. The Adreno 610 GPU is adequate for casual games like Candy Crush or Among Us.

Software is Vivo’s Funtouch OS, which is heavy with pre-installed apps (bloatware) and promotional notifications. You can uninstall most of them. The phone received one major OS update to Android 13 (Funtouch OS 13) and will not get Android 14. Security patches were promised for two years, but as of 2024, updates have slowed. If you value long-term software support, this is not the phone for you.

Camera System: 50MP Main, but Not a Flagship

The 50 MP main sensor (likely a Samsung ISOCELL JN1) takes 12.5 MP binned photos by default. In daylight, images are sharp with decent dynamic range, though colors are oversaturated. Low-light performance is mediocre—no optical image stabilization, and night mode requires a steady hand. The 2 MP macro and 2 MP depth sensors are largely gimmicks; the macro lens produces soft, low-detail shots, and the depth sensor’s portrait mode works only in ideal lighting. The 16 MP front camera is adequate for video calls and social selfies.

Video recording maxes out at 1080p/30fps on both front and rear. There is no 4K mode, and electronic stabilization is basic.

Build Quality and Connectivity

The Y31d has a plastic frame and a plastic back with a textured finish that resists fingerprints. The side-mounted fingerprint sensor doubles as the power button and is fast and reliable. The phone has a 3.5mm headphone jack and a dedicated microSD slot, so you can use two SIMs and a memory card simultaneously—a feature disappearing from many phones.

Connectivity is limited to 4G LTE (bands 1, 3, 5, 8, 40, 41). It does not support 5G, which is a significant drawback if you plan to use the phone for 3-4 years. Wi-Fi is dual-band AC, and Bluetooth 5.0 works with most accessories. NFC is absent, so mobile payments via Google Pay contactless will not work.

Common Problems and Solutions

• Battery drain: If the phone drains quickly, check for apps running in the background. Go to Settings > Battery > Background App Management and restrict apps you don’t need. Also, lowering the screen refresh rate to 60Hz (Settings > Display > Screen Refresh Rate) extends battery life.
• Notification delays: Funtouch OS aggressively kills background apps. To fix, go to Settings > Battery > Background App Management > Allow Auto Launch for the apps you want notifications from, and disable “Sleep Mode” for them.
• Overheating: The Snapdragon 662 can get warm during fast charging or extended gaming. Remove any thick case and avoid using the phone while charging. If it gets uncomfortably hot, stop using it and let it cool.
• Storage filling up: The 64GB model has only about 45GB usable after the OS and pre-installed apps. Use a microSD card for photos and videos, and move large files to the card via Settings > Storage.

Should You Buy It in 2024?

The Vivo Y31d was a solid budget phone in 2021, but by 2024 it is outdated. The lack of 5G, the eMMC storage (slower than UFS), and the end of major software updates make it a poor new purchase. However, if you find a used one for under $80 (or equivalent) in good condition, it still works well as a basic phone for calls, media, and light browsing. For a similar price, newer phones like the Redmi 12 or Moto G14 offer newer chips, more storage, and 5G, though they may have inferior build quality.

If you already own a Y31d, it remains usable for another year or two with careful battery management. The 5000 mAh battery will degrade naturally; if you notice it draining faster, consider a battery replacement at a service center (cost varies, but it’s usually less than $30).

Frequently Asked Questions

Does the Vivo Y31d support 5G?

No. The Y31d uses the Snapdragon 662 chipset, which has an integrated 4G LTE modem only. It does not support 5G networks, so you will be limited to 4G speeds even if your carrier offers 5G.

What is the difference between Vivo Y31 and Y31d?

The Y31d has a 50 MP main camera and ships with Android 12 (Funtouch OS 12). The standard Y31 has a 48 MP main camera and ships with Android 11 (Funtouch OS 11). All other specs—display, battery, processor, RAM, storage—are identical. The Y31d is essentially a hardware revision of the Y31.

Can I expand the storage on the Y31d?

Yes. The Y31d has a dedicated microSD slot that supports cards up to 1 TB. You can use two SIM cards and a microSD card simultaneously, since the slot is separate from the SIM tray.

Does the Y31d have a headphone jack?

Yes, it has a 3.5mm headphone jack on the bottom edge, next to the USB-C port. This is useful if you prefer wired earphones.

Is the Y31d waterproof?

No. The phone has no official IP rating for water or dust resistance. Keep it away from liquids and use a protective case if you are concerned about splashes.

How many years of software updates will the Y31d get?

Vivo promised two years of security updates and one major OS update. The phone launched with Android 12 and received Android 13. As of 2024, it is unlikely to receive Android 14 or further security patches.

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