---
product_id: 404710977
title: "SEAHAI Case for Vivo Y21 / Vivo Y21s / Vivo Y33s, Ultra-thin Protective Silicone TPU Shockproof Hybrid Hard PC Back Phone Cover for Vivo Y21 / Vivo Y21s, with Foldable Hidden Form Bracket - Gray"
brand: "seahai"
price: "$25.72"
currency: USD
in_stock: true
reviews_count: 5
category: "Seahai"
url: https://www.desertcart.us/products/404710977-seahai-case-for-vivo-y21-vivo-y21s-vivo-y33s-ultra
store_origin: US
region: United States of America
---

# Hidden foldable kickstand for hands-free viewing Perfect precision fit for Vivo Y21 series 360° military-grade protection SEAHAI Case for Vivo Y21 / Vivo Y21s / Vivo Y33s, Ultra-thin Protective Silicone TPU Shockproof Hybrid Hard PC Back Phone Cover for Vivo Y21 / Vivo Y21s, with Foldable Hidden Form Bracket - Gray

**Brand:** seahai
**Price:** $25.72
**Availability:** ✅ In Stock

## Summary

> 🛡️ Elevate your Vivo’s defense with style and function — don’t just protect, dominate!

## Quick Answers

- **What is this?** SEAHAI Case for Vivo Y21 / Vivo Y21s / Vivo Y33s, Ultra-thin Protective Silicone TPU Shockproof Hybrid Hard PC Back Phone Cover for Vivo Y21 / Vivo Y21s, with Foldable Hidden Form Bracket - Gray by seahai
- **How much does it cost?** $25.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/404710977-seahai-case-for-vivo-y21-vivo-y21s-vivo-y33s-ultra)

## Best For

- seahai enthusiasts

## Why This Product

- Trusted seahai brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Grip Meets Style:** Textured silicone finish offers anti-slip comfort with a modern gray aesthetic.
- • **Drop-Tested Confidence:** Military-grade shock absorption guards against everyday accidents.
- • **Hands-Free Entertainment:** Integrated foldable stand transforms your phone into a mini theater.
- • **Rugged Armor, Sleek Profile:** Dual-layer TPU + PC hybrid shields your phone without bulk.
- • **Tailored for Vivo Y21 Series:** Precision cutouts ensure seamless access to all ports and buttons.

## Overview

The SEAHAI Ultra-thin Protective Case for Vivo Y21/Y21s/Y33s combines military-grade dual-layer TPU and polycarbonate materials to deliver 360-degree shockproof protection. Designed with precision cutouts and a textured silicone finish, it ensures full access and a secure grip. Its hidden foldable kickstand offers hands-free convenience for video calls and entertainment, making it the ultimate blend of rugged durability and sleek functionality.

## Description

SEAHAI - [Rugged Anti-drop Series] Phone Covers - The Best Partner to Your Vivo Y21 / Vivo Y21s / Vivo Y33s! ●Hybrid Armor Case The durable high-grade material offer comfortable feeling and wonderful grip to prevent slip. This shockproof case is easy to snap on and remove, fit your phone perfectly and keep high touch sensitivity. Precise cut-outs allow accesses to all controls and buttons, the button covers are easy to feel and press. ●Bumper Case The Vivo Y21 / Vivo Y21s / Vivo Y33s cover is reinforced with a tough polycarbonate back cover, which makes this slim phone case ideal and suitable for you to use in your daily life. ●Dual Layer Case Dual protection layers of polycarbonate and TPU, hard corners resist shock during accidental drops, Precise cutouts allow easy access to ports, buttons and cameras. ●Kickstand Case Watch your favourite movies and videos hands free with the kickstand function of this shockproof phone case. Helps you to listen to the phone’s speaker hands-free. The foldable hidden bracket will not increase its volume and will not affect its beauty. ★ Package include 1 * Vivo Y21 / Vivo Y21s / Vivo Y33s phone case Thank you for choosing SEAHAI - We strive to provide you with the best products and services. If you have any questions about our products, please let us know and our team will be happy to assist you!

Review: Garde mon mobile bien protégé depuis bien longtemps - La peinture pars un peu, on voit donc le plastique transparent mais ça fait le job
Review: Muy bien - Hace mucho tiempo que lo tengo, se me cae al suelo habitualmente y nunca le ha pasado nada al móvil. Es muy buena carcasa. Lo único que la palanca que tiene detrás para poder apoyar el móvil, al cabo de un tiempo se rompe.

## Features

- 【Perfect Fit】Fits tightly for Vivo Y21 / Vivo Y21s / Vivo Y33s with precise cutting, easy access to buttons, speakers, cameras, charging interface, to ensure better sensitivity.
- 【Military Grade Materials】Military Drop Tested. Dual layer provides 360 degree full body rugged protection. Premium hybrid hard Polycarbonate (PC) + Thermoplastic Polyurethane (TPU) materials provide solid texture.
- 【360 Degree Protection】TPU shock absorption and raised four surrounding corners protecting your Vivo Y21 / Vivo Y21s / Vivo Y33s cell phone, so it will not be affected by a fall. Deep camera cutout protects the camera from scratches while preserving the complete flash function.
- 【Stand Design】This Vivo Y21 / Vivo Y21s / Vivo Y33s mobile phone case has a hidden foldable stand. Frees up your hands with this stable stand so you can watch movies, surf the web, video meeting, view photos easier.
- 【Fashion Appearance】With its unique fashion appearance and colorful colors, not only adds a unique aesthetic to your Vivo Y21 / Vivo Y21s / Vivo Y33s, but it is also hard and anti-drop and anti-skid, providing you with an excellent feel.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09J3PVM42 |
| Best Sellers Rank | 249,670 in Mobile Phone Basic Cases |
| Box Contents | Kickstand |
| Brand | SEAHAI |
| Brand Name | SEAHAI |
| Colour | Gray |
| Compatible Devices | cameras |
| Compatible Phone Models | Vivo Y21 |
| Compatible devices | cameras |
| Compatible phone models | Vivo Y21 |
| Country of Origin | China |
| Customer Reviews | 4.0 out of 5 stars 12 Reviews |
| Embellishment Feature | No Embellishment |
| Enclosure Material | Silicone |
| Form Factor | Basic Case |
| Item Dimensions | 16.5 x 8.2 x 1.5 centimetres |
| Item dimensions L x W x H | 16.5 x 8.2 x 1.5 centimetres |
| Manufacturer | SEAHAI |
| Material | Silicone |
| Model Number | PKKJ_Vivo Y21_Gray |
| Pattern | Solid |
| Product Features | Foldable, Kickstand, Shock-Absorbent |
| Product Finish Type | Textured |
| Screen Size | 6.4 |
| Theme | Movie |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** SEAHAI
- **Compatible phone models:** Vivo Y21
- **Colour:** Gray
- **Compatible devices:** cameras
- **Material:** Silicone
- **Item dimensions L x W x H:** 16.5 x 8.2 x 1.5 centimetres
- **Pattern:** Solid
- **Embellishment:** No Embellishment
- **Theme:** Movie
- **Special feature:** Kickstand, Foldable, Shock-Absorbent

## Images

![SEAHAI Case for Vivo Y21 / Vivo Y21s / Vivo Y33s, Ultra-thin Protective Silicone TPU Shockproof Hybrid Hard PC Back Phone Cover for Vivo Y21 / Vivo Y21s, with Foldable Hidden Form Bracket - Gray - Image 1](https://m.media-amazon.com/images/I/511fD959-gL.jpg)
![SEAHAI Case for Vivo Y21 / Vivo Y21s / Vivo Y33s, Ultra-thin Protective Silicone TPU Shockproof Hybrid Hard PC Back Phone Cover for Vivo Y21 / Vivo Y21s, with Foldable Hidden Form Bracket - Gray - Image 2](https://m.media-amazon.com/images/I/61VJotjX0TL.jpg)
![SEAHAI Case for Vivo Y21 / Vivo Y21s / Vivo Y33s, Ultra-thin Protective Silicone TPU Shockproof Hybrid Hard PC Back Phone Cover for Vivo Y21 / Vivo Y21s, with Foldable Hidden Form Bracket - Gray - Image 3](https://m.media-amazon.com/images/I/61o1+Ax3U8L.jpg)
![SEAHAI Case for Vivo Y21 / Vivo Y21s / Vivo Y33s, Ultra-thin Protective Silicone TPU Shockproof Hybrid Hard PC Back Phone Cover for Vivo Y21 / Vivo Y21s, with Foldable Hidden Form Bracket - Gray - Image 4](https://m.media-amazon.com/images/I/61wbvFz-93L.jpg)
![SEAHAI Case for Vivo Y21 / Vivo Y21s / Vivo Y33s, Ultra-thin Protective Silicone TPU Shockproof Hybrid Hard PC Back Phone Cover for Vivo Y21 / Vivo Y21s, with Foldable Hidden Form Bracket - Gray - Image 5](https://m.media-amazon.com/images/I/61tsp0jnHdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Garde mon mobile bien protégé depuis bien longtemps
*by B***N on 19 January 2025*

La peinture pars un peu, on voit donc le plastique transparent mais ça fait le job

### ⭐⭐⭐⭐⭐ Muy bien
*by C***N on 11 June 2023*

Hace mucho tiempo que lo tengo, se me cae al suelo habitualmente y nunca le ha pasado nada al móvil. Es muy buena carcasa. Lo único que la palanca que tiene detrás para poder apoyar el móvil, al cabo de un tiempo se rompe.

### ⭐⭐⭐⭐⭐ Futuristica
*by C***N on 10 October 2025*

Ottima veramente ben fatta e materiali gradevoli al tatto

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-10-02*