vivo has quietly expanded its budget smartphone lineup by launching the new vivo Y31d. This device debuted at the end of January 2026 on official vivo websites in Cambodia and Vietnam, succeeding the vivo Y21d which launched in Indonesia in November 2025. The vivo Y31d stands out with its exceptionally large battery and rugged build quality, tailored for users who demand durability in extreme conditions.
One of the vivo Y31d’s most notable features is its massive 7200 mAh battery. This capacity is impressive for a smartphone positioned in the entry to mid-range segment. According to vivo, the device can last for up to 13 hours of continuous gaming, 14 hours of GPS navigation, 45 hours of video playback, and 68 hours of nonstop music listening. This endurance addresses the needs of users with heavy daily usage who are concerned about battery life.
Complementing its large battery is 44W fast charging support. The vivo Y31d can recharge from 1% to 50% in approximately 43 minutes. Additionally, it features reverse charging, enabling the phone to act as a power bank to charge other devices. Another value-added feature is bypass charging that supplies power directly to the system instead of passing through the battery. This minimizes heat generation and extends the battery’s lifespan significantly. vivo even claims that the battery will remain reliable for up to six years of use.
Rugged Durability with IP69+ Certification
The vivo Y31d is designed to endure tough environments. Its chassis is reinforced to withstand minor impacts and accidental drops. The phone achieves an IP69+ certification, which offers a high level of protection against dust and water ingress.
IP69+ certification means the smartphone is resistant to high-pressure water jets and can endure hot water spray. It is safe in heavy rain and can survive underwater submersion at a depth of 1.5 meters for up to 30 minutes. These capabilities make the vivo Y31d a reliable choice for users involved in outdoor activities or harsh work environments.
Further enhancing its outdoor suitability is the introduction of underwater photography mode. This feature enables users to capture pictures while the phone is submerged, a rare capability in budget smartphones that adds to vivo’s positioning of the Y31d as a rugged device.
Performance and Hardware Specifications
Inside, the vivo Y31d is powered by the Qualcomm Snapdragon 6s 4G Gen 2 chipset, launched in December 2025. Although this processor does not support 5G, it uses a modern 6nm fabrication process and combines four Cortex-A73 cores clocked at 2.9 GHz and four Cortex-A53 cores at 1.9 GHz. This setup delivers solid performance for common daily tasks such as multitasking, social media use, and light gaming.
The phone offers memory configurations tailored to different user needs:
- 6GB RAM with 128GB internal storage
- 8GB RAM with 128GB internal storage
- 8GB RAM with 256GB internal storage, equipped with UFS 2.2 technology
These options provide flexibility for users who want more storage for apps, games, and media.
Display and Camera Features
The vivo Y31d sports a 6.75-inch LCD panel with a resolution of 720 x 1570 pixels, which classifies it as an HD+ display. Despite the modest resolution, it supports a refresh rate of 120Hz for smooth scrolling and navigation. The screen achieves a peak brightness of 1250 nits, ensuring usability in bright outdoor conditions.
For selfies and video calls, the front-facing camera is an 8MP sensor with an f/2.05 aperture embedded in a punch-hole design at the top of the display.
On the rear, there is a 50MP primary camera paired with a 2MP depth sensor. The camera module features a metallic frame which gives the device a premium look despite its affordable price segment.
Additional Features and Software
The vivo Y31d includes a side-mounted fingerprint sensor integrated with the power button. Sound is enhanced by stereo speakers with volume boosted by up to 400% compared to typical smartphones. It supports dual SIMs and makes use of the convenient USB Type-C port for charging and data transfer.
The device runs OriginOS 6, based on the latest Android 16 operating system, making it one of the few entry-level smartphones to operate on such an up-to-date software platform.
Physically, the phone measures 166.6 mm in length, 78.4 mm in width, and weighs 219 grams. Its thickness varies between 8.39 mm and 8.49 mm depending on the color variant.
Price and Availability
Currently, the vivo Y31d is listed only on vivo’s official Cambodia and Vietnam websites. There has been no announcement regarding its pricing or broader availability. However, considering its categorization within the Y Series, the phone is expected to be priced affordably to compete in the budget segment.
Summary of Key Specifications
| Specification | Details |
|---|---|
| Battery | 7200 mAh with 44W fast charging |
| Durability | IP69+ certification, rugged frame |
| Processor | Qualcomm Snapdragon 6s 4G Gen 2 |
| RAM & Storage Options | 6GB/128GB, 8GB/128GB, 8GB/256GB |
| Display | 6.75" LCD, 720×1570 px, 120Hz refresh rate, 1250 nits brightness |
| Rear Camera | 50MP + 2MP depth sensor |
| Front Camera | 8MP, f/2.05 aperture |
| OS | OriginOS 6 (Android 16) |
| Weight | 219 grams |
vivo’s new Y31d smartphone effectively addresses the needs of users requiring long battery life and robust device durability. Its IP69+ certification and large 7200 mAh battery make it ideal for demanding outdoor usage and endurance scenarios. Although it uses 4G connectivity, its chipset and RAM options ensure competent daily performance. This device adds an attractive option in the budget smartphone market for those who prioritize resilience and extended battery life without sacrificing modern features.
