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Samsung Galaxy S21 Ultra vs Samsung Galaxy Z Flip7

Updated Apr 2026phones
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The Verdict

The Samsung Galaxy S21 Ultra and Samsung Galaxy Z Flip7 sit in the same category and end up appealing to slightly different buyers. The Samsung Galaxy Z Flip7 is the cheaper of the two at $1,100 versus $1,199, a difference of about $99. The Samsung Galaxy Z Flip7 is the newer release, which usually means a faster chipset and longer software support. Samsung Galaxy S21 Ultra stands out for 100x space zoom with 10x optical telephoto, while Samsung Galaxy Z Flip7 is praised for compact flip form factor. Use the side-by-side spec table below to compare cameras, displays, battery life and connectivity in detail and decide which one fits your priorities.

Who Should Buy

Buy the Samsung Galaxy S21 Ultra if…

  • 100x Space Zoom with 10x optical telephoto
  • 108 MP main sensor with excellent detail
  • S Pen support (first S-series to do so)

Buy the Samsung Galaxy Z Flip7 if…

  • Compact flip form factor
  • Large 3.9-inch cover display
  • Snapdragon 8 Elite

Pros & Cons

Samsung Galaxy S21 Ultra

Pros

  • 100x Space Zoom with 10x optical telephoto
  • 108 MP main sensor with excellent detail
  • S Pen support (first S-series to do so)
  • 1440p 120Hz LTPO adaptive display
  • 5000 mAh battery with all-day endurance

Cons

  • Heavy at 227 g
  • Snapdragon 888 can overheat under load
  • S Pen sold separately, no silo slot
  • Slow 25W charging for the class
  • No charger or earbuds in the box

Samsung Galaxy Z Flip7

Pros

  • Compact flip form factor
  • Large 3.9-inch cover display
  • Snapdragon 8 Elite
  • IPX8 water resistance

Cons

  • No telephoto camera
  • 25W charging is slow
  • Still visible crease on inner display

Full Specifications

SpecSamsung Galaxy S21 UltraSamsung Galaxy Z Flip7
SoftwareAndroid 11, One UI 3.1Android 15, One UI 7
Body
Weight227 g187 g
MaterialAluminum frame, Gorilla Glass VictusArmor Aluminum frame
IP ratingIP68IPX8
Dimensions165.1 x 75.6 x 8.9 mm85 x 72 x 14.6 mm (folded)
Camera
Main camera108 MP, f/1.8, OIS50 MP, f/1.8, OIS
Front camera40 MP, f/2.210 MP, f/2.2
Video8K@24fps, 4K@60fps4K@60fps
Periscope10 MP, f/4.9, 10x optical zoom
Telephoto10 MP, f/2.4, 3x optical zoom
Ultrawide12 MP, f/2.212 MP, f/2.2
Memory
RAM12 GB12 GB
Storage options128 GB, 256 GB, 512 GB256 GB, 512 GB
Battery
Capacity5000 mAh4000 mAh
Charging25W wired25W wired
Wireless charging15W wireless15W wireless
Display
Size6.8 inches6.7 inches (inner), 3.9 inches (cover)
TypeDynamic AMOLED 2X, LTPODynamic AMOLED 2X, LTPO
Resolution3200 x 14402640 x 1080 (inner)
Refresh rate120Hz120Hz
Brightness (nits)15002600
Processor
CPUOcta-core (1x2.84 GHz + 3x2.42 GHz + 4x1.8 GHz)Octa-core
GPUAdreno 660Adreno 830
ChipsetQualcomm Snapdragon 888Snapdragon 8 Elite
Connectivity
5G
NFC
USBUSB-C 3.2USB-C 3.2
Wi-FiWi-Fi 6Wi-Fi 7
Bluetooth5.25.4

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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.

Explore more in phones, see all Samsung products or all Samsung products. View full details for the Samsung Galaxy S21 Ultra or the Samsung Galaxy Z Flip7.