Name: Samsung Galaxy S21 Ultra Cell Phones
Brand: Samsung
Rating: 3.79 (23135 reviews)

Samsung Galaxy S21 Ultra Cell Phones Black Unlocked 128GB New

$246.00$399.99(38.5% off)

Samsung3.83.8

(1,184)

$246.00$399.99(38.5% off)

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Specifications

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2021

23135

not specified

2021

23135

Reviews & Ratings

(1,184)

3.5

1184 reviews

👍 Pros

👎 Cons

Performance

3.0

60%

Fast processor and smooth multitasking, but many units suffer from overheating, random shutdowns, and freezing issues. Overall performance is inconsistent.

Performance

3.0

60%

Fast processor and smooth multitasking, but many units suffer from overheating, random shutdowns, and freezing issues. Overall performance is inconsistent.

Camera Quality

4.5

90%

Excellent camera with 108MP and 8K video, delivering sharp, clear photos. Few complaints about blurry or non-functional cameras.

Camera Quality

4.5

90%

Excellent camera with 108MP and 8K video, delivering sharp, clear photos. Few complaints about blurry or non-functional cameras.

Battery Life

2.5

50%

Battery life is poor; many users report fast drain, overheating while charging, and capacity degradation. Only a few find it adequate.

Battery Life

2.5

50%

Battery life is poor; many users report fast drain, overheating while charging, and capacity degradation. Only a few find it adequate.

Display Quality

3.5

70%

Vibrant, smooth 120Hz display with great colors. However, some units have screen failures, black lines, or poor quality aftermarket screens.

Display Quality

3.5

70%

Vibrant, smooth 120Hz display with great colors. However, some units have screen failures, black lines, or poor quality aftermarket screens.

Build & Design

3.5

70%

Premium design with glass back, but often poorly refurbished with gaps, loose seals, and scratches. Some units appear like new.

Build & Design

3.5

70%

Premium design with glass back, but often poorly refurbished with gaps, loose seals, and scratches. Some units appear like new.

Keywords

User Voices

5.0AMAZONOct 13, 2025

A. Will

Good buy

Everything is working exactly as it should. No complaints here.

2.0WALMARTOct 12, 2025

anonymous

Expert Reviews

3 sources

The Samsung Galaxy S21 Ultra is a top-tier Android flagship featuring a stunning 6.8-inch AMOLED display, dual telephoto lenses, and S Pen compatibility. It delivers strong battery life and powerful performance, though it is expensive and lacks a charger and expandable storage.

Key Highlights

Dynamic 6.8-inch AMOLED display with 120Hz refresh rate and WQHD resolution

Dual telephoto lenses (3x and 10x optical zoom) for impressive zoom capabilities

S Pen support for the first time in the Galaxy S series

Strong battery endurance (11+ hours) and Snapdragon 888 performance

Premium design but no included charger or microSD slot

Pros

Dynamic 6.8-inch AMOLED display33%

Dual telephoto lenses33%

S Pen compatibility33%

Strong battery endurance33%

Top-tier camera zoom33%

Stunning design33%

Cons

Expensive phone33%

Missing charger33%

Missing microSD slot33%

Heavy device33%

High Cost33%

No MicroSD Slot33%

In-depth Articles

Samsung Galaxy S21 Ultra Unboxing and First Impressions

The Galaxy S21 Ultra packs a top-notch superzoom camera that actually delivers, works great with Samsung's slick S Pen, and raises the standard for smartphone features in 2021.

4.5

Willie Patton

Samsung Galaxy S21 Ultra hands-on review

The Galaxy S21 Ultra lives up to the hype

Gregory Williams

Samsung Galaxy S21 Ultra deep dive review

The Galaxy S21 Ultra was king of Android — until the Galaxy S22 Ultra showed up

Debra Hernandez

Frequently Asked Questions

Galaxy S21 Ultra vs S22 Ultra: worth the difference?

The S22 Ultra adds a built-in S Pen silo, a refined design, and newer chip, but the Galaxy S21 Ultra still delivers a very similar camera and display for noticeably less money. Budget buyers get most of the experience with the S21 Ultra. Compare both models' prices across sellers on shopfox to judge the upgrade.

How is the Galaxy S21 Ultra battery life?

The Samsung Galaxy S21 Ultra packs a 5,000mAh battery that typically lasts a full day of mixed use, though heavy camera and 120Hz use drains it faster. On used units battery health varies, so check it before buying. Compare Refurbished Galaxy S21 Ultra battery condition and prices across sellers on shopfox and watch for cashback.

Is the Samsung Galaxy S21 Ultra waterproof?

The Galaxy S21 Ultra is water resistant with an IP68 rating, surviving up to 1.5 meters for 30 minutes, but it's not fully waterproof. It handles rain and spills fine, though resistance fades with age. Avoid swimming with it. If buying used, compare Galaxy S21 Ultra warranties across sellers on shopfox for peace of mind.

Compare prices for Samsung Samsung Galaxy S21 Ultra Cell Phones

Samsung Galaxy S21 Ultra Cell Phones Black Unlocked 128GB New

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Current SKU offers

Specifications

General3

System & Performance3

Display4

Camera2

Video1

Battery3

Dimension2

Connectivity4

Security2

Warranty1

Reviews & Ratings

Expert Reviews

Frequently Asked Questions

Galaxy S21 Ultra vs S22 Ultra: worth the difference?

How is the Galaxy S21 Ultra battery life?

Is the Samsung Galaxy S21 Ultra waterproof?

Expert Reviews

Frequently Asked Questions

Galaxy S21 Ultra vs S22 Ultra: worth the difference?

How is the Galaxy S21 Ultra battery life?

Is the Samsung Galaxy S21 Ultra waterproof?