Samsung Galaxy S21 Ultra 5G 128GB Unlocked (Renewed) — main product image

Samsung Galaxy S21 Ultra 5G 128GB Unlocked (Renewed)

Samsung

Samsung Galaxy S21 Ultra 5G 128GB Unlocked (Renewed)

Name: Samsung Galaxy S21 Ultra 5G 128GB Unlocked (Renewed)
Brand: Samsung
SKU: Galaxy S21 Ultra 5G

★★★★★3.8 (262 reviews)

6299999942574W

The Galaxy S21 Ultra's 108MP camera and 5G speed deliver a flagship experience that still holds up — now at a renewed price that makes it easier to justify.

$295.12*

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*Price sourced from Amazon.com. Last updated:Jun 08, 2026.Price and availability are subject to change.

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Overview

The Samsung Galaxy S21 Ultra 5G is a 6.8-inch flagship built around the Snapdragon 888 (or Exynos 2100, depending on region), paired with 12GB of LPDDR5 RAM and 128GB of UFS 3.1 storage. The camera system is the defining feature: a 108MP f/1.8 primary sensor using nonacell pixel-binning to produce clean 12MP images in most shooting modes, with the option to shoot full resolution when needed. It's backed by a 12MP ultra-wide and two telephoto cameras covering 3x and 10x optical zoom. The 6.8-inch Dynamic AMOLED display runs at up to 120Hz with adaptive refresh, which means it drops to lower rates for static content to conserve the 5000mAh battery — a meaningful efficiency trade-off at this screen size.

Buying this phone renewed makes the most sense for users who want top-tier camera hardware and a large, high-refresh display without paying current flagship pricing. It's well-suited to photographers who want a capable always-on camera, power users who keep many apps running simultaneously, and anyone whose workflow benefits from the S Pen's precision input (stylus sold separately). The things to plan around: storage is capped at 128GB with no expansion option, so cloud-first workflows or light local media storage are prerequisites. Wireless and reverse wireless charging are supported, but a charger ships separately in the renewed configuration. As with any renewed device, verifying battery health shortly after arrival is strongly recommended.

Key Features

Item Package Dimension- 6.9299999929314L X 5.6299999942574W X 1.3399999986332H Inches

Item Package Weight - 0.78925489796 Pounds

Item Package Quantity - 1

Product Type - Cellular Phone

Specifications

Model

Samsung Galaxy S21 Ultra 5G

Operating System

Android

RAM

12GB

Storage

128GB (no microSD expansion)

Display

6.8 inches, Dynamic AMOLED, 120Hz

Primary Camera

108MP

Cellular

5G, LTE, CDMA, GSM

Wireless

Wi-Fi, Bluetooth

Charging

Wireless Charging, Reverse Wireless Charging

Water Resistance

IP68

Color

Black

Condition

Renewed (Unlocked)

Pros & Cons

👍 Pros

108MP primary sensor with pixel-binning produces sharp, detailed images in a range of lighting conditions that most smartphones in the renewed market can't match.
6.8-inch Dynamic AMOLED display with 120Hz adaptive refresh rate delivers noticeably smoother scrolling and more vivid color than the majority of competing devices in the renewed segment.
5G support across sub-6GHz and mmWave bands future-proofs connectivity on major carrier networks.
12GB RAM enables genuine multitasking — switching between heavy apps without the re-loading delays common on 6–8GB competitors.
Water resistance (IP68 rated) provides meaningful protection against accidental submersion up to 1.5 meters.

👎 Cons

128GB base storage has no microSD expansion slot — users who shoot frequently in high-resolution modes or store large media libraries will encounter space constraints.
Battery health on a renewed unit is undisclosed — original S21 Ultra shipped with a 5000mAh cell, but prior charge cycles may reduce maximum capacity below that spec.
No charger included in the renewed box — the S21 Ultra supports 25W wired fast charging, but buyers must source a compatible USB-C PD adapter separately.
The S21 Ultra is a large, heavy device at this screen size — single-handed use is genuinely difficult, and the curved display increases accidental edge touches.
Running Android on a 2021 flagship means Samsung's official software support window is nearing its end — major OS updates beyond Android 14 are not guaranteed.

Frequently Asked Questions

Is this phone unlocked and will it work with my carrier?

Yes, this is sold as unlocked. It supports GSM, CDMA, LTE, and 5G, which covers the major US carriers — AT&T, T-Mobile, and Verizon — as well as most international networks. You'll want to confirm your carrier's 5G band compatibility for the best experience, particularly on mmWave versus sub-6GHz networks.

What does "Renewed" mean for this phone, and is it worth it over buying new?

This unit has been professionally inspected and tested to function and appear like new. Renewed flagship phones from this tier represent strong value — you get the hardware capabilities of a premium device at a reduced price. The primary considerations are battery health (renewed units may have reduced maximum capacity from prior use) and the absence of the original Samsung retail warranty.

Does the S21 Ultra still support the S Pen?

Yes. The Galaxy S21 Ultra was the first non-Note series Samsung phone to natively support the S Pen stylus. The S Pen is sold separately — this unit does not include one — but the screen digitizer supports it if you purchase an S Pen compatible with the S21 Ultra.

How does 128GB of storage hold up with a 108MP camera?

A single uncompressed 108MP image at full resolution can exceed 20MB. Shooting in RAW format for photography work will fill 128GB faster than the spec suggests. For users shooting primarily in standard JPEG or HEIF formats and using Samsung's 12MP binned default mode, 128GB is manageable day-to-day. There is no microSD card slot on the S21 Ultra — cloud backup or USB-C transfer are the primary overflow options.

Is wireless charging supported on this unit?

Yes. The S21 Ultra supports both fast wireless charging (up to 15W Qi) and Samsung's reverse wireless charging feature, which lets the phone act as a charging pad for compatible accessories. Wired fast charging is also supported, though a charger is not included with renewed units.