StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai › Samsung
Samsung
Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked)

Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked)

3.3(26 ratings)

Best price now

$209.00at WalmartChecked 8 h ago

45% under what the other stores charge

Compared across 14 stores. Prices are checked against each store and labelled with when.

Visit Walmart
Samsung discount code →

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Lowest price today: $209.00 at Walmart (checked Nov 13, 2026).
  • Checked at 14 stores.

Our take on the Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked)

The Galaxy S20 Ultra 5G is Samsung's 2020 flagship phone, built around a 6.9-inch 3200 x 1400 AMOLED display and a 108MP main camera with a folded-lens periscope that reaches 10x hybrid optic zoom and up to 100x digital zoom. It runs on a 2.8 GHz processor with 5G, and Single Take captures up to 10 seconds of stills and video in one tap. It suits people who want a big screen and the longest zoom reach of its generation, but it is heavy and large, and its 3.3-out-of-5 owner rating reflects complaints about autofocus, battery drain and heat. Rivals like the iPhone 11 Pro Max and OnePlus 8 Pro are easier to handle and more consistent, while the Ultra still wins on zoom range and screen size.

Best forPhotographers who want long zoom reachPeople who prefer a very large screen5G users who watch a lot of video
Pros
  • 6.9-inch 3200 x 1400 AMOLED screen
  • 108MP main camera with 10x hybrid optic and 100x digital zoom
  • Single Take captures stills and video in one tap
  • 5G and a 2.8 GHz processor
  • 128GB storage with microSD expansion
Cons
  • Large and heavy in the hand
  • Autofocus complaints on the main camera
  • Battery drain and heat under load
  • High-refresh screen drains power faster
  • Pricier than same-year rivals

Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked) prices at every store

  • WalmartNew

    In stockSold by Creo Distributions LLC

    $209.00Free shippingChecked 8 h ago
    Visit Walmart
  • eBayNew

    In stockSold by qualitybuy2017

    $277.13+ $16.00 shippingChecked 8 h ago
    Visit eBay
  • TargetNew

    In stock

    $479.97Free shippingChecked 8 h ago
    Visit Target
  • AmazonRefurbished

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $229.00Free shippingChecked 8 h ago
    Visit Amazon
  • SwappaNew

    Availability unknown

    $236.00Checked 8 h ago
    Visit Swappa
  • ElectronicsForce.comNew

    Availability unknown

    $239.99Checked 8 h ago
    Visit ElectronicsForce.com
  • Cell2GetNew

    Availability unknown

    $289.99Checked 8 h ago
    Visit Cell2Get
  • Reebelo USANew

    Availability unknown

    $294.99Checked 8 h ago
    Visit Reebelo USA
  • Cellification.comNew

    Availability unknown

    $355.99Checked 8 h ago
    Visit Cellification.com
  • techsolcompany.comNew

    Availability unknown

    $379.00Checked 8 h ago
    Visit techsolcompany.com
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $379.88Free shippingChecked 8 h ago
    Visit Amazon
  • TECHDaddy AccsNew

    Availability unknownMade for another market

    $399.00Checked 8 h ago
    Visit TECHDaddy Accs
  • KenDoTronicsNew

    Availability unknown

    $579.00Checked 8 h ago
    Visit KenDoTronics
  • Newegg.comNew

    Availability unknownSold by All-Out Mobile

    $729.98Checked 8 h ago
    Visit Newegg.com
  • fusion electronicsNew

    Availability unknown

    $999.99Checked 8 h ago
    Visit fusion electronics

Store links may earn us a commission.

Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked) price history

Lowest price we've seen: $208.35 on Nov 13 at Walmart; $209.00 now. Tracked across 14 stores since Nov 13.

What reviewers say

  • 3.3 / 526 ratings

Owners rate it 3.3 out of 5. They like the big screen and the zoom range, but many complain about autofocus hunting, battery life and heat.

What people mention
  • AutofocusCriticisedOwners say the main camera often hunts for focus and misses quick shots.
  • BatteryCriticisedReviewers report the battery drains fast, especially with the high-refresh display on.
  • ZoomPraisedThe 10x hybrid optic and 100x digital zoom reach further than most rivals.
  • DisplayPraisedThe 6.9-inch 3200 x 1400 panel is called big, bright and sharp.
  • HeatCriticisedSome owners say the phone warms up during gaming or heavy camera use.
  • SizeMixedThe large body suits big-screen fans but is awkward for smaller hands.

About the Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked)

The Samsung Galaxy S20 Ultra 5G is an unlocked 5G smartphone with 128 GB of storage. It has a 6.9 Infinity-O display with a 3200 x 1400 resolution and a 2.8 GHz processor.

The camera system is 108MP. It offers 10X Hybrid Optic Zoom built on a folded lens and a high-resolution image sensor. Super Resolution Zoom with camera AI extends this to 100X Space Zoom. The larger image sensor is meant for low-light shooting, and Night Mode merges multiple shots into one photo with less blur and noise.

Single Take uses AI to capture up to 10 seconds of footage and produce a variety of still and video formats with one tap. The phone also supports double-tap sharing and Super Fast Charging. It is dustproof, splashproof and water-resistant.

Brand
Samsung
Model
Galaxy S20 Ultra 5G SM-G988U
Storage
128 GB
Color
Cosmic Black
Network
Unlocked, 5G
Processor
2.8 GHz
Display
6.9 Infinity-O, 3200 x 1400 resolution
Camera
108MP system, 10X Hybrid Optic Zoom, 100X Space Zoom, Night Mode
Cellular
CDMA2000 1X / GSM / WCDMA (UMTS)
Protection
Dustproof, splashproof, water-resistant
Form factor
Touch
Dimensions
6.6 in high x 3 in wide x 0.3 in deep
Weight
7.83 oz

Specifications

Hard Drive Capacity
128 GB
Actual Color
Cosmic Black
color
Cosmic Black
size
128 GB

Questions and answers

Is the Galaxy S20 Ultra 5G still worth buying?
If you want the longest zoom and biggest screen of its generation, yes. If you want lighter handling and steadier autofocus, newer or rival phones do better.
How does it compare with the Galaxy S20 and S20+?
The Ultra has a larger 6.9-inch screen, a 108MP main camera and the periscope zoom the S20 and S20+ lack. It is also heavier and more expensive.
Does the 100x zoom stay sharp?
No. The 10x hybrid optic zoom is usable; beyond that, Super Resolution Zoom is digital and images get soft and noisy.
What is in the box?
The phone, a charger, a USB-C cable and a SIM tool. A case and screen protector are not included.
Does it support 5G and microSD?
Yes. It is a 5G phone and takes a microSD card to expand the 128GB of built-in storage.
How is the battery life?
Mixed. Most owners get through a day, but heavy camera or gaming use and the high-refresh display drain it faster.
Where is the Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked) cheapest?
At Walmart, for $209.00, 45% under what the other stores charge, as of our latest check.
What do buyers say about the Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked)?
Rated 3.3 out of 5 from 26 ratings.
Where can I buy the Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked)?
14 stores we checked sell it, including Walmart, Amazon, Swappa, ElectronicsForce.com, eBay.

Stores we've priced the Samsung Galaxy S20 Ultra 5G SM-G988U 128GB Smartphone (Unlocked) at

  • Cell2Get deals and prices
  • ElectronicsForce.com deals and prices
  • Fusion Electronics deals and prices
  • KenDoTronics deals and prices
  • Newegg deals and prices
SAR value
1.59 W/kg (simultaneous), 1.08 W/kg (wireless router), 0.95 W/kg (body), 0.94 W/kg (head)
  • Reebelo USA deals and prices
  • Swappa deals and prices
  • Target deals and prices
  • TECHDaddy Accs deals and prices
  • Walmart deals and prices
  • More from Samsung

    • S
      Samsung Galaxy S25 Ultra 5G 512GB - Titanium Jetblack (Unlocked)
      Samsung Galaxy S25 Ultra 5G 512GB - Titanium Jetblack (Unlocked)
    • G
      Galaxy S24 256GB (Verizon)
      Galaxy S24 256GB (Verizon)
    • S
      Samsung Galaxy Z Fold 8 Ultra
      Samsung Galaxy Z Fold 8 Ultra
    • S
      Samsung Galaxy A57 5G
      Samsung Galaxy A57 5G
    • S
      Samsung Galaxy A36
      Samsung Galaxy A36
    • S
      Samsung Galaxy Z Fold 8
      Samsung Galaxy Z Fold 8
    • S
      Samsung Galaxy Z Fold 7
      Samsung Galaxy Z Fold 7
    • S
      Samsung Galaxy A56
      Samsung Galaxy A56
    All Samsung deals and products →

    More smartphones

    • S
      Samsung Galaxy Z Fold7
      Samsung Galaxy Z Fold7
    • X
      X10 Electric Scooter
      X10 Electric Scooter
    • A
      Apple iPhone 11
      Apple iPhone 11
    • S
      Samsung Galaxy Note 20 Ultra 5G N986 128GB Black Dual Sim Unlocked Smartphone
      Samsung Galaxy Note 20 Ultra 5G N986 128GB Black Dual Sim Unlocked Smartphone
    • S
      Samsung Galaxy Note 20 Ultra 256 GB Mystic Black
      Samsung Galaxy Note 20 Ultra 256 GB Mystic Black
    • G
      Galaxy Note 20 Ultra 5G 128GB Gold
      Galaxy Note 20 Ultra 5G 128GB Gold
    • S
      Samsung Galaxy Note 20 Ultra 128GB 8GB Ram Mystic White
      Samsung Galaxy Note 20 Ultra 128GB 8GB Ram Mystic White
    • S
      Samsung Galaxy Note 20 Ultra 5G 128GB - Mystic Black - Unlocked for All GSM Carriers
      Samsung Galaxy Note 20 Ultra 5G 128GB - Mystic Black - Unlocked for All GSM Carriers