---
product_id: 682739156
title: "Samsung Galaxy S21 5G Android Smartphone | SM-G991U | 128GB Storage | 8GB RAM | SIM Free Unlocked | Phantom Gray | Used"
brand: "samsung"
price: "FREE"
currency: SGD
in_stock: false
url: https://www.desertcart.sg/products/682739156-samsung-galaxy-s21-5g-android-smartphone-sm-g991u-128gb-storage
store_origin: SG
region: Singapore
---

# 8GB RAM for smooth multitasking 5G Connectivity 128GB Storage Samsung Galaxy S21 5G Android Smartphone | SM-G991U | 128GB Storage | 8GB RAM | SIM Free Unlocked | Phantom Gray | Used

**Brand:** samsung
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Elevate your mobile game with the Galaxy S21 5G – where speed meets style!

## Quick Answers

- **What is this?** Samsung Galaxy S21 5G Android Smartphone | SM-G991U | 128GB Storage | 8GB RAM | SIM Free Unlocked | Phantom Gray | Used by samsung
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/682739156-samsung-galaxy-s21-5g-android-smartphone-sm-g991u-128gb-storage)

## Best For

- samsung enthusiasts

## Why This Product

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

## Key Features

- • **Stunning Visuals:** Vibrant, sharp display that brings your content to life with brilliant colors.
- • **Unlocked Freedom:** SIM-free and unlocked for ultimate carrier flexibility worldwide.
- • **Ample Storage Space:** 128GB internal storage to keep your photos, apps, and files all in one place.
- • **Next-Gen Connectivity:** Experience ultra-fast 5G speeds for streaming, gaming, and working on the go.
- • **Powerhouse Performance:** 8GB RAM ensures seamless multitasking and lightning-fast app launches.

## Overview

The Samsung Galaxy S21 5G SM-G991U is a sleek, Phantom Gray unlocked smartphone featuring 128GB storage and 8GB RAM, delivering fast 5G connectivity and a vibrant display. Despite being a renewed device, it offers excellent performance and value, perfect for professionals seeking reliable speed and flexibility.

## Description

Buy Samsung Galaxy S21 5G Android Smartphone | SM-G991U | 128GB Storage | 8GB RAM | SIM Free Unlocked | Phantom Gray | Used online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- Camera
- Front Camera
- camera

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08VLMQ3KS |
| Additional Features | Camera, Front Camera, camera |
| Aspect Ratio | 1.33:1 |
| Average Battery Life Talk Time | 40 Hours |
| Battery Average Life | 2 days |
| Battery Capacity | 4000 milliamp_hours |
| Battery Charge Time | 73 minutes |
| Battery Description | Lithium Ion |
| Best Sellers Rank | #41,450 in Mobile Phones & Communication Products ( See Top 100 in Mobile Phones & Communication Products ) #2,117 in SIM-free & Unlocked Mobile Phones |
| Biometric Security Feature | Fingerprint Recognition |
| Brand | Samsung |
| Camera Description | Front, Rear |
| Cellular Technology | 5G |
| Color | Phantom Grey |
| Compatible Devices | Any unlocked 5G-capable device |
| Connectivity Technology | Wi-Fi |
| Customer Reviews | 4.0 4.0 out of 5 stars (7,932) |
| Display Pixel Density | 421 Pixels Per Inch (PPI) |
| Effective Video Resolution | 4320 Pixels |
| Flash Memory Supported Size Maximum | 128 GB |
| Frame Rate | 60, 120 fps |
| Front Photo Sensor Resolution | 32 MP |
| GPS Geotagging Functionality | True |
| Headphones Jack | No headphone jack |
| Human-Interface Input | Touchscreen |
| Item Dimensions | 15.2 x 7.1 x 0.8 centimeters |
| Item Weight | 168 g |
| Memory Storage Capacity | 128 GB |
| Model Series | S21 |
| Model Year | 2021 |
| Number of Front Cameras | 2 |
| Number of Rear Facing Cameras | 2 |
| Optical Sensor Resolution | 64 MP |
| Phone Talk Time | 1 Hours |
| Processor Series | Snapdragon |
| Processor Speed | 2.84 GHz |
| RAM Memory Installed | 6 GB |
| Rear Facing Camera Photo Sensor Resolution | 64 MP |
| Resolution | 1080 x 2400 |
| SIM Card Slot Count | Dual SIM |
| Screen Size | 6.2 Inches |
| Shooting Modes | Automatic |
| Sim Card Size | Nano |
| Specific Uses For Product | outdoor activities, wet environments |
| Supported Satellite Navigation System | GPS |
| UPC | 656942006800 649661735908 657768421105 724129304787 656942688440 |
| Video Capture Resolution | 1080p |
| Water Resistance Level | Water Resistant |
| Wireless Network Technology | Bluetooth, GSM, LTE, NFC, UMTS |
| Wireless Provider | Unlocked |

## Product Details

- **Brand:** Samsung
- **CPU model:** Snapdragon
- **CPU speed:** 2.84 GHz
- **Installed RAM memory size:** 6 GB
- **Memory storage capacity:** 128 GB

## Images

![Samsung Galaxy S21 5G Android Smartphone | SM-G991U | 128GB Storage | 8GB RAM | SIM Free Unlocked | Phantom Gray | Used - Image 1](https://m.media-amazon.com/images/I/61XyNdmvr6L.jpg)

## Questions & Answers

**Q: Anyone having issues with the S21 bluetooth?**
A: Yes, I sometime I have problem with my Bluetooth sometime it will not connect.

**Q: Will it still have the water resistance/ waterproofing?**
A: Be aware of the difference between waterproof and water resistant. If you don't need to submerge it, then don't. It will be resistant to splashes and rain and probably a fall in the toilet or the pool. I wouldn't rely on to take underwater photos if that's what you mean.

**Q: Does it work with a wireless charger?**
A: Yes. It works very well and fast charging.

**Q: What components have been replaced in the refurbished phones**
A: I don't know what components were replaced.  The phone looked like new when I got it.

## Frequently Bought Together

- Samsung Galaxy S21 5G, US Version, 128GB, Phantom Gray - Unlocked (Renewed)
- NEW'C 3 Pack Designed for Samsung Galaxy S21 5G (6.2), Screen Protector Tempered Glass, Scratch-Proof, Bubble-Free, Ultra Resistant (0.26 mm HD Ultra Transparent) 9H Hardness Glass
- for Samsung Galaxy S21 Case, Galaxy S21 Case with HD Screen Protector [Military Grade Drop Tested] Heavy-Duty Tough Rugged Shockproof Protective Case for S21, Black

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**Shop now:** [https://www.desertcart.sg/products/682739156-samsung-galaxy-s21-5g-android-smartphone-sm-g991u-128gb-storage](https://www.desertcart.sg/products/682739156-samsung-galaxy-s21-5g-android-smartphone-sm-g991u-128gb-storage)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-10-15*