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Galaxy S20 Ultra vs Galaxy Z Flip3 5G

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Galaxy S20 Ultra

Starting at

£269.45£1,199.99 new
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Galaxy Z Flip3 5G

Starting at

£229.00
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(86 reviews)
(421 reviews)

What's the difference between the Galaxy S20 Ultra and Galaxy Z Flip3 5G?

Galaxy S20 Ultra vs Z Flip3 5G comes down to the RAM, battery and screen size. Refurbished, the Galaxy Z Flip3 5G starts at £229, £40.45 less than the Galaxy S20 Ultra. The Galaxy Z Flip3 5G is the newer model, released in 2021.

Refurbished from

£269.45£229

RAM

12 GB8 GB

Battery

5000 mAh3300 mAh

Screen size

6.9 inch6.7 inch

Screen type

Dynamic AMOLED 2XFoldable Dynamic AMOLED 2X

Main camera

108 megapixels12 megapixels
  • The Galaxy S20 Ultra has more RAM: 12 GB vs 8 GB.
  • The Galaxy S20 Ultra has a bigger battery: 5000 mAh vs 3300 mAh.
  • The Galaxy S20 Ultra has a bigger screen: 6.9 inch vs 6.7 inch.

Galaxy S20 Ultra vs Galaxy Z Flip3 5G specs

The Galaxy S20 Ultra and Galaxy Z Flip3 5G differ in design, durability, and camera capabilities, catering to distinct needs. The Galaxy S20 Ultra offers a larger, higher resolution screen and a more powerful camera setup, ideal for photography enthusiasts and those who prefer a traditional smartphone shape with a bigger display and longer battery life. Your choice hinges on whether you value screen size and camera detail or portability and foldable innovation.

Galaxy S20 Ultra vs Galaxy Z Flip3 5G price

Colour

  • BlackSold out
  • GreenSold out
  • BeigeSold out
  • PurpleSold out
  • WhiteSold out
  • PinkSold out

Storage

  • 128GBSold out
  • 256GBSold out

Galaxy S20 Ultra vs Galaxy Z Flip3 5G battery life and software updates

Durability includes battery size, foldability, software updates, and operating system, all important for daily use and how long the phone stays functional. The two devices offer different approaches to these aspects.

Battery Capacity

The Galaxy S20 Ultra has a 5000 mAh battery, which suits users who need longer battery life for heavy use or extended periods without charging. The Galaxy Z Flip3 5G has a smaller 3300 mAh battery, fitting those who prioritise compact design and can manage more frequent charging.

Foldable Design

The Galaxy Z Flip3 5G features a foldable design, which makes it more pocket-friendly and offers a different way to use the screen. The Galaxy S20 Ultra has a traditional design without folding, providing a solid, single-display experience.

Battery

5000 mAh3300 mAh

Foldable

NoYes

Ip rating

N/AIPX8

Software updates

Ended Mar 2025Ended Sep 2026

Year of release

20202021

Galaxy S20 Ultra vs Galaxy Z Flip3 5G performance

Chipset

N/AQualcomm SM8350 Snapdragon 888 5G (5 nm)

RAM

12 GB8 GB

Galaxy S20 Ultra vs Galaxy Z Flip3 5G screen

Screen quality shapes how you experience videos, games and everyday use. Both phones have the same refresh rate but differ in size and resolution, which affects clarity and viewing space.

Screen Size and Resolution

The Galaxy S20 Ultra offers a larger 6.9 inch screen with a 1440 x 3200 resolution, making it ideal for users who want more room for media and sharper images. The Galaxy Z Flip3 5G has a slightly smaller 6.7 inch screen with 1080 x 2640 resolution, which suits users who prefer a balanced screen size with full HD clarity.

Screen Type and Refresh Rate

Both devices use Dynamic AMOLED 2X screens with a 120 Hz refresh rate, delivering smooth motion and vibrant colours. The Galaxy Z Flip3 5G's screen is foldable, giving it a unique form factor that changes how you hold and carry the phone.

Refresh rate

120 Hz120 Hz

Resolution

1440 x 32001080 x 2640

Screen size

6.9 inch6.7 inch

Screen type

Dynamic AMOLED 2XFoldable Dynamic AMOLED 2X

Galaxy S20 Ultra vs Galaxy Z Flip3 5G camera

Camera and audiovisual features influence photography and video quality. The two devices differ in camera counts and megapixel strength, which affects detail and versatility.

Camera Setup

The Galaxy S20 Ultra has a quadruple camera setup, offering more lenses for varied photography options. The Galaxy Z Flip3 5G has a double camera setup, which is simpler and may suit users who want straightforward photo capabilities.

Camera Resolution

The Galaxy S20 Ultra's main camera is 108 megapixels and its front camera is 40 megapixels, capturing highly detailed images and sharp selfies. The Galaxy Z Flip3 5G's main camera is 12 megapixels with a 10 megapixel front camera, fitting users who want solid everyday photos without prioritising ultra-high resolution.

Camera type

Quadruple (4x)Double (2x)

Front camera

40 megapixels10 megapixels

Main camera

108 megapixels12 megapixels

Galaxy S20 Ultra vs Galaxy Z Flip3 5G size and design

Other features include network compatibility, physical design, ports and storage options, all affecting how you use the phone day to day.

Network and SIM Options

The Galaxy Z Flip3 5G supports 5G networks, providing access to faster mobile data where available. It uses a physical SIM plus eSIM. The Galaxy S20 Ultra supports 4G with dual physical SIM slots, offering flexibility for managing two physical numbers.

Size and Weight

The Galaxy Z Flip3 5G is thinner at 6.9 mm deep and lighter at 183 g, making it easier to carry. The Galaxy S20 Ultra is thicker at 8.8 mm and heavier at 222 g, which may suit those who prefer a more substantial feel.

Ports and Storage

The Galaxy Z Flip3 5G includes both USB-C and a 3.5mm headphone jack, supporting wired audio without adapters. It comes in 128GB and 256GB storage options. The Galaxy S20 Ultra has USB-C and supports expandable storage via microSDXC card, with 128GB available, which is useful if you want to add more space later.

Dimensions

The Galaxy S20 Ultra is wider at 76 mm and slightly taller at 166.9 mm. The Galaxy Z Flip3 5G measures 72.2 mm wide and 166 mm tall, reflecting its compact, foldable design.

Carrier compatibility

UnlockedUnlocked

Connector

USB-CUSB-C + Jack 3.5mm

Depth

8.8 mm6.9 mm

Height

166.9 mm166 mm

Mobile network

4G5G

SD card slot

microSDXCNo

SIM card

Dual Physical SIMPhysical SIM + eSIM

Weight

222 g183 g

Width

76 mm72.2 mm

Galaxy S20 Ultra or Galaxy Z Flip3 5G: which should you buy?

Buy the Galaxy S20 Ultra if

  • you want more RAM (12 GB vs 8 GB)
  • you want a bigger battery (5000 mAh vs 3300 mAh)
  • you want a bigger screen (6.9 inch vs 6.7 inch)

Buy the Galaxy Z Flip3 5G if

  • you want to spend less: it starts at £229, £40.45 less than the Galaxy S20 Ultra
  • you want 5G
  • you want a lighter build (183 g vs 222 g)

What our customers say

Customers praise the Galaxy S20 Ultra for its condition, with many saying it looks brand new and works well. Several reviews mention the good battery life and fast app loading. Some users appreciate the camera quality and overall performance. A few noted minor issues such as leftover details from the previous owner or screen faults, but most remain very satisfied with their purchase. The S20 Ultra appeals to users who value a reliable, well-performing phone with a large screen and strong battery.

Reviews for the Galaxy Z Flip3 5G highlight its clear and responsive screen and good overall condition. Several customers mention the battery life is shorter but expected given the phone's thin, foldable design. Data transfer from previous phones is described as easy. Some users note problems with screen protectors bending or carrier locking, but many enjoy the foldable form and find the phone works as it should. This phone suits those who want a compact, stylish device and accept more frequent charging.

Overall, the Galaxy S20 Ultra fits users looking for a large, powerful phone with extended battery and camera capabilities. The Galaxy Z Flip3 5G suits buyers seeking a lightweight, foldable phone with 5G and the latest updates.

Galaxy S20 Ultra vs Galaxy Z Flip3 5G FAQs

Galaxy S20 Ultra vs Z Flip3 5G comes down to the RAM, battery and screen size. The Galaxy S20 Ultra has more RAM: 12 GB vs 8 GB. The Galaxy S20 Ultra has a bigger battery: 5000 mAh vs 3300 mAh.

The Galaxy Z Flip3 5G is cheaper refurbished, from £229 compared with £269.45 for the Galaxy S20 Ultra.

The Galaxy S20 Ultra has a bigger battery: 5000 mAh vs 3300 mAh.

The Galaxy S20 Ultra has a higher-resolution main camera: 108 megapixels vs 12 megapixels.

Updates for the Galaxy S20 Ultra ended in Mar 2025. Updates for the Galaxy Z Flip3 5G ended in Sep 2026.

The Galaxy Z Flip3 5G adds 5G, a lighter build (183 g vs 222 g) and a headphone jack. Refurbished, it costs £40.45 less (from £229 vs £269.45).

Refurbished, the Galaxy S20 Ultra comes in 128GB, and the Galaxy Z Flip3 5G in 128GB and 256GB.

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