Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • 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.
TermsPrivacy
Deal.ai › Compare

Samsung Galaxy S21 Ultra 5G vs Motorola Moto G Stylus 5G 2025

The Galaxy S21 Ultra is the better phone for photography, display quality and raw performance. Its 108MP main camera, 10x optical zoom and 6.8-inch 1440p AMOLED still hold up, and owners consistently praise the camera and battery life. The Moto G Stylus 5G 2025 is the more practical buy for someone who wants a stylus, a headphone jack, microSD expansion and faster wired charging in a lighter body. The S21 Ultra is a 2021 flagship sold pre-owned, so battery health and software support are the real risks; the Moto is newer but a midrange chip.

  • Choose the Galaxy S21 Ultra if camera zoom, a sharper 1440p screen and flagship speed matter more to you than having a stylus or a headphone jack.
  • Choose the Moto G Stylus 5G if you want a built-in stylus, expandable storage, a headphone jack and faster wired charging in a lighter phone.

Prices

  • Samsung Galaxy S21 Ultra 5G: $258.98 at Walmart (checked today)
  • Motorola Moto G Stylus 5G 2025: $213.16 at eBay (last seen Nov 1)
  • Difference: the Motorola Moto G Stylus 5G 2025 is $45.82 cheaper than the Samsung Galaxy S21 Ultra 5G at the latest prices (Nov 1 and Nov 9)
Samsung
Samsung Galaxy S21 Ultra 5G Smartphone

Samsung Galaxy S21 Ultra 5G

Samsung Galaxy S21 Ultra 5G Smartphone

4.2(8,900 ratings)
$258.98at WalmartChecked 10 h ago
See all prices and details
Visit Walmart
Pros
  • Outstanding 108MP camera with strong 10x zoom
  • Sharp 1440p 120Hz AMOLED at 515ppi
  • Flagship 5nm chip and 12GB RAM
  • Wireless charging and IP68 water resistance
  • All-day 5000mAh battery
Cons
  • Sold pre-owned, so battery health varies
  • Heavy at 229g
  • No microSD and no headphone jack
  • Software update support is largely over
Motorola
Motorola Moto G Stylus 5G 2025 Unlocked 128GB

Motorola Moto G Stylus 5G 2025

Motorola Moto G Stylus 5G 2025 Unlocked 128GB

$213.16at eBayChecked Nov 1
See all prices and details
Visit eBay

Store links may earn us a commission.

Pros
  • Built-in stylus for notes and sketching
  • microSD expansion up to 2TB
  • 68W wired charging
  • Lighter at 191g with a headphone jack
  • Very bright 3000-nit AMOLED
Cons
  • Midrange Snapdragon 6 Gen 3 trails flagship chips
  • Only 8GB LPDDR4X RAM
  • Camera system is far less capable, especially zoom
  • 1220p resolution is lower than the S21 Ultra

What separates them

Samsung Galaxy S21 Ultra 5GMotorola Moto G Stylus 5G 2025
Camera system108MP main with OIS, 10x optical and 100x Space Zoom, 40MP frontDual rear (wide, ultrawide, macro) with 4K video, single front camera
Display6.8-inch 1440p Dynamic AMOLED 2X, 120Hz adaptive, 1500 nits peak6.7-inch 1220p AMOLED, 120Hz, 3000 nits peak
Processor and RAM5nm flagship octa-core with 12GB LPDDR5Snapdragon 6 Gen 3 with 8GB LPDDR4X
StylusNo S Pen in the box; S Pen sold separately and only works on the UltraBuilt-in stylus stored in the phone
Storage128GB or 256GB fixed, no microSD128GB plus microSD up to 2TB
Charging25W wired, 15W wireless, 5000mAh68W wired, 15W wireless, 5000mAh
Weight and ports229g, USB-C only, no headphone jack191g, USB-C plus 3.5mm headphone jack
Condition and supportSold pre-owned; Android updates have largely endedNew, current Android with longer update runway

Price history

$287.99$191.99
Oct 31Nov 9
  • Samsung Galaxy S21 Ultra 5G: lowest $191.99 on Oct 31 at Walmart; $258.98 on Nov 9.
  • Motorola Moto G Stylus 5G 2025: lowest $213.16 on Nov 1 at eBay.

Prices at every store

Samsung Galaxy S21 Ultra 5G

  • WalmartNew

    In stockSold by Creo Distributions LLC

    $258.98Free shippingChecked 10 h ago
    Visit Walmart
  • Reebelo USANew

    Availability unknown

    $277.99Checked 10 h ago
    Visit Reebelo USA
  • ElectronicsForce.comNew

    Availability unknownMade for another market

    $278.99Checked 10 h ago
    Visit ElectronicsForce.com
  • Groupon.comNew

    Availability unknown

    $279.99Checked 10 h ago
    Visit Groupon.com

Also available at

  • ElectronicsForceCheck price at ElectronicsForce
  • FechMartCheck price at FechMart
All 11 stores and price history →

Motorola Moto G Stylus 5G 2025

  • eBayNew

    Availability unknown

    $213.16Checked Nov 1
    Visit eBay
  • AmazonNew

    Availability unknown

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

    $299.99Checked Nov 1
    Visit Amazon
  • Best BuyNew

    Availability unknown

    $299.99Checked Nov 1
    Visit Best Buy
  • CompSourceNew

    Availability unknown

    $402.03Checked Nov 1
    Visit CompSource

Store links may earn us a commission.

All 5 stores and price history →

Specs compared

SpecSamsung Galaxy S21 Ultra 5GMotorola Moto G Stylus 5G 2025
Screen size6.8"6.7″
Display resolution3200x14402712x1220px
Dimensions75.6x165.1x8.9mm162.15 x 74.78 x 8.29 mm
Weight229g(mmWave), 227g(sub6)6.74 oz / 191.0 g
Battery capacity5000mAh (typical)5000 mAh
Processor5nm 64-bit Octa-Core ProcessorSnapdragon 6 Gen 3 SM6475-AB (4 nm)
RAM12GB RAM (LPDDR5)8 GB RAM
Display Size6.8 in6.7-inch
Display TypeDynamic AMOLED 2XAMOLED, 120Hz, HDR, 3000 nits
SIM SupportSingle SIM, Dual SIMDual SIM
Broadband Generation5G5G
BluetoothBluetooth5.4
Show all 40 specsShow fewer specs
SpecSamsung Galaxy S21 Ultra 5GMotorola Moto G Stylus 5G 2025
colorBlackBlue
Pixel density515ppi—
Refresh rate10~120Hz—
Rear wide camera108MP Phase Detection AF, FOV 83°, OIS, F1.8, 0…—
Front camera40MP Phase Detection AF, FOV 80°, F2.2, 0.7 µm—
Internal storage128GB / 256GB—
Touch ScreenYes—
Display Pixel Density515 ppi—
Display TechnologyDynamic AMOLED 2X—

What reviewers say

Samsung Galaxy S21 Ultra 5G

  • 4.2 / 58,900 ratings

With 4.2 out of 5 from about 8,900 ratings, owners mostly praise the camera and battery life. Complaints center on size and weight and on the phone showing its age.

What people mention
  • CameraPraisedOwners single out the 108MP main camera as the reason to buy.
  • BatteryPraisedThe 5000mAh battery is widely described as lasting a full day.
  • Size and weightCriticisedAt 227-229g and 8.9mm thick, several owners find it bulky and hard to use one-handed.
  • DisplayPraisedThe 6.8-inch 120Hz AMOLED is called bright and smooth.

Motorola Moto G Stylus 5G 2025

Owners of the Moto G Stylus line generally praise the stylus, the bright AMOLED screen and the long battery life for the money. Common complaints center on middling performance for heavy gaming and on camera quality that trails pricier phones, especially in low light.

What people mention
  • StylusPraisedOwners say the built-in pen is handy for jotting notes and marking up screenshots.
  • DisplayPraisedThe 120Hz AMOLED is called bright and smooth for the price.
  • BatteryPraisedThe 5,000 mAh cell and 68W charging get through a day with quick top-ups.
  • PerformanceMixedFine for everyday apps, but the Snapdragon 6 Gen 3 shows its limits in heavy games.

Questions and answers

Which has the better camera?
The Galaxy S21 Ultra. Its 108MP main sensor, OIS and 10x optical zoom beat the Moto's dual-lens setup, especially for zoom and low light. The Moto covers wide, ultrawide and macro but has no telephoto.
Which is better for note-taking and drawing?
The Moto G Stylus 5G. It has a stylus built into the body. The S21 Ultra supports an S Pen, but you buy it separately and there is nowhere to store it.
Which lasts longer?
The Moto is newer and will get Android updates longer, and its battery is fresh. A pre-owned S21 Ultra may need a battery replacement, and its major software updates have mostly ended.
Is the S21 Ultra worth stepping up to over the Moto?
Yes if camera quality, screen sharpness and speed are your priorities. No if you need a stylus, expandable storage, a headphone jack or a new device with a long update runway.
Does either support wireless charging?
Both do, at 15W. The Moto charges much faster over a cable at 68W versus roughly 25W on the S21 Ultra.
Which is easier to carry?
The Moto. It weighs 191g against 229g for the S21 Ultra, and it is slightly shorter and thinner.

Ask our shopping agent

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

More comparisons

  • Samsung Galaxy S21 Ultra 5G Smartphone vs Galaxy S21 Ultra512GB
  • Motorola moto g stylus vs Samsung Galaxy S21 Ultra 5G Smartphone
Display Aspect Ratio
20:9
—
Display Brightness1500 nits (peak)—
Display Refresh Rate120Hz—
Display HighlightsTouch screen, Always-on display—
Battery LifeAll-day battery—
Battery Charging TechnologyWireless Charging—
Battery Standby Time285 hours—
Battery Talk Time37 hours—
Removable BatteryNon-removable—
Ports And InterfacesUSB Type-C—
Wi-FiWi-Fi, Wi-Fi 6E—
Wireless InterfaceBluetooth, NFC, Wi-Fi—
Data Transmission5G—
GPS TypeGPS—
Hard Drive Capacity128—
Actual ColorBlack—
size128 GB—
Wired charging—68.0W
Wireless charging—15.0W