Is the S21 Ultra still worth buying?

It remains a strong camera phone with a big 120Hz screen and long optical zoom. Newer Galaxy S Ultras add faster charging and longer software support, so weigh that against the S21 Ultra's feature set.

Does it come with an S Pen?

No. The S Pen is sold separately, and the phone has no slot to store it. Any S Pen made for the S21 Ultra works.

How good is the 100x Space Zoom?

The 10x optical lens is sharp and useful. Beyond about 30x the image is heavily processed and best treated as a convenience rather than a quality zoom.

Does it support 5G and dual SIM?

The factory unlocked model supports 5G on major US carriers and takes a nano-SIM. Check carrier support for dual-SIM use.

Is it water resistant?

Yes, it carries an IP68 rating, so it survives splashes and brief immersion in fresh water.

The phone, a USB-C cable and a SIM tool. There is no charger or case included.

Samsung Galaxy S21 Ultra 5G Factory Unlocked Android Cell Phone

Q: Where is the Samsung Galaxy S21 Ultra 5G Factory Unlocked Android Cell Phone cheapest?

At Walmart, for $248.85, 17% under what the other stores charge, as of our latest check.

Q: Where can I buy the Samsung Galaxy S21 Ultra 5G Factory Unlocked Android Cell Phone?

11 stores we checked sell it, including ElectronicsForce, Amazon, Walmart, UpTrade, Swappa.

Best price now

$248.85at WalmartChecked 1 h ago

17% under what the other stores charge

Compared across 10 stores. Prices are checked against each store and labelled with when.

Visit Walmart

What reviewers say

Owners and reviewers rate the S21 Ultra as one of the best camera phones of its generation, especially for zoom and screen quality. Common complaints are its size, weight and the missing charger.

What people mention

Zoom cameraPraisedReviewers say the 3x and 10x optical lenses keep detail that other phones lose, and call the 100x mode a novelty.
DisplayPraisedOwners highlight the large QHD+ panel, its 120Hz smoothness and brightness outdoors.
Size and weightCriticisedMany say the phone is heavy and hard to use one-handed.
BatteryPraisedMost owners report it lasts a full day of normal use.
S PenMixedReviewers like the added stylus support but note the pen is sold separately and has nowhere to store.
In-box accessoriesCriticisedBuyers complain that no charger or case comes in the box.

About the Samsung Galaxy S21 Ultra 5G Factory Unlocked Android Cell Phone

The Samsung Galaxy S21 Ultra 5G is a factory unlocked Android phone with a 6.8-inch Dynamic AMOLED 2X display that runs at 120Hz. It has glass on the front and back, both Corning Gorilla Glass Victus, with an aluminum frame. It is IP68 dust and water resistant and supports a stylus.

The multi-lens camera has a 108MP sensor and Laser Focus. Zoom comes from a dual lens combo of 3x and 10x optical zoom, with 100x Space Zoom for greater range. It records 8K video, and you can pull still photos from the 8K footage. Multi-cam recording and automatic effects let you make videos and GIFs on the spot.

The phone connects over 5G and uses intelligent battery management that adjusts to how you use it. It ships with Android 11 and can be upgraded to Android 12 with One UI 4.1.

Network

GSM / CDMA / HSPA / EVDO / LTE / 5G

Announced

January 14, 2021

Released

January 29, 2021

Dimensions

165.1 x 75.6 x 8.9 mm (6.5 x 2.98 x 0.35 in)

Weight

227 g (Sub6), 229 g (mmWave) (8.01 oz)

Build

Gorilla Glass Victus front and back, aluminum frame