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Large black rectangular smartphone with curved glass edges and a prominent multi-lens camera array on the back

SAMSUNG

SAMSUNG Galaxy S21 Ultra 5G Verizon Phantom Black 128GB

SKU CH-KTGZ-9DJ2N

A 6.8-inch 5G smartphone with 108-megapixel camera, 12 GB RAM and 128 GB storage

  • ProcessorQualcomm SM8350 Snapdragon 888
  • Storage drive128 GB
  • Connection optionsYes
  • Operating systemAndroid
  • Form factorSmart Phones
  • Technology type2G/3G/4G LTE/5G
  • 8" Dynamic AMOLED 2X display delivers vivid colours at 120 Hz
  • 108 MP main camera with quad rear lenses captures high-resolution 8K video
  • Octa-core processor at 2.9 GHz with 12 GB RAM powers demanding tasks
  • 128 GB internal storage holds apps, photos and 8K footage
  • Verizon 5G connectivity on a new Phantom Black handset

Samsung Galaxy S21 Ultra 5G 128GB

The Samsung Galaxy S21 Ultra 5G is a flagship smartphone built for users who want top-tier camera performance and a large, high-resolution display. It runs Android on an octa-core processor clocked at 2.9 GHz with 12 GB of RAM and 128 GB of internal storage. The 6.8-inch Dynamic AMOLED 2X screen delivers a 1440 x 3200 resolution and a 120 Hz refresh rate.

Suited for photography enthusiasts and power users

This device suits buyers who prioritise a versatile quad-camera system led by a 108 MP wide sensor and dual 10 MP telephoto lenses, plus a 40 MP front camera for detailed selfies. It also supports S Pen input for precise control. Buyers who need expandable storage via microSD should look elsewhere, as the handset offers only the fixed 128 GB capacity.

Verizon-locked 5G connectivity

The single specification that decides fit is the carrier lock: this unit is configured for the Verizon network and supports 2G, 3G, 4G LTE and 5G bands approved for that carrier. Buyers intending to use a different mobile operator must verify compatibility before purchase, as the device may not function fully on other networks.

How it compares

Measured against everything we stock in No-Contract Smartphones, at today’s prices. Recalculated every night.

Price $296.99
Pricier than about 73% of the 646 comparable items (median $180.49).
Storage drive 128 GB
Typical for this category: the median of 506 items is 128 GB.

Specifications

Product
Brand nameSamsung
Product lineSamsung Galaxy S21 Ultra 5G
Model nameSM-G998
Part numberSM-G998
Product typeCell Phone
Product colorBlack
Processor
ProcessorQualcomm SM8350 Snapdragon 888
Core configurationOcta Core
CPU clock speed2.9
Memory
RAM capacity12 GB
Storage
Storage drive128 GB
Display
TouchscreenYes
Main screen size6.8 in (17.3 cm)
Screen resolution1440 × 3200
Outer display size6.8
Audio & video
Back camera108 MP
Selfie camera40 MP
SoundYes
Connectivity
Connection optionsYes
Technology type2G/3G/4G LTE/5G
Wi-Fi capabilityYes
BluetoothYes
4G networkLTE
Power
Battery typeNon-removable Li-Po Battery
Size & build
Form factorSmart Phones
Product weight0.5 lb (0.23 kg)
Software
Operating systemAndroid

Questions about this item

How do I activate this Verizon-locked S21 Ultra and what step do people often skip?

Insert the Verizon SIM, power on and follow the on-screen carrier activation; the step often missed is checking for a carrier settings update before restoring data.

What maintenance will the 128 GB storage need over time?

The 128 GB eMMC storage has no moving parts; keep at least 10 % free and run occasional storage optimisation in Android settings to maintain write speed.

What limit appears first during extended 108 MP or 8K video sessions?

Sustained 108 MP capture or 8K recording causes thermal throttling; the 2.9 GHz octa-core reduces clocks after several minutes to protect the 6.8" Dynamic AMOLED 2X panel.

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