Buy wisely
Buy wiselyBuy wisely
For RetailersFor developers
  1. Home
  2. Electronics
  3. Mobile Phones
  4. Samsung Galaxy
  5. Samsung Galaxy S21 Ultra 5G 128 GB Phantom Black
Buy wisely

BuyWisely is your one stop price comparison platform, delivering the best deals from over 20,000 online shops. We empower shoppers to make smart, cost-effective choices by offering transparent pricing, price history, and the latest deals across a broad range of products. With BuyWisely, your money goes further.

Popular Shops
JB Hi-Fi
The Good Guys
Harvey Norman
Appliances Online
Bing Lee
Kogan
Amazon
Officeworks
Contact Us
[email protected]
Affiliate Disclosure
Legal Information
Privacy Policy
Logos provided by Logo.dev
© 2026 BuyWisely•Price data powered by pricesAPI.io•Retailers: SellWisely.io
Samsung Galaxy S21 Ultra 5G 128 GB Phantom Black
Samsung Galaxy S21 Ultra 5G 128 GB Phantom Black
Samsung Galaxy S21 Ultra 5G 128 GB Phantom Black
Samsung Galaxy S21 Ultra 5G 128 GB Phantom Black
Samsung Galaxy S21 Ultra 5G 128 GB Phantom Black

Samsung Galaxy S21 Ultra 5G 128 GB Phantom Black

$236.33

This device is unlocked and will be compatible with all major Canadian carriers. For 5G and network compatible-to ensure that this phone can be used with your carrier, please check to make sure that the phone supports the 5G-enabled frequency used by your carrier. For 5G and network compatible-to ensure that this phone can be used with your carrier, please check to make sure that the phone supports the 5G-enabled frequency used by your carrier. This device is unlocked and will be compatible with all major Canadian carriers.

This device is unlocked and will be compatible with all major Canadian carriers. For 5G and network compatible-to ensure that this phone can be used with your carrier, please check to make sure that the phone supports the 5G-enabled frequency used by your carrier. For 5G and network compatible-to ensure that this phone can be used with your carrier, please check to make sure that the phone supports the 5G-enabled frequency used by your carrier. This device is unlocked and will be compatible with all major Canadian carriers.

Samsung Galaxy S21 Ultra 5G 128 GB Phantom Black

This device is unlocked and will be compatible with all major Canadian carriers. For 5G and network compatible-to ensure that this phone can be used with your carrier, please check to make sure that the phone supports the 5G-enabled frequency used by your carrier. For 5G and network compatible-to ensure that this phone can be used with your carrier, please check to make sure that the phone supports the 5G-enabled frequency used by your carrier. This device is unlocked and will be compatible with all major Canadian carriers.

This device is unlocked and will be compatible with all major Canadian carriers. For 5G and network compatible-to ensure that this phone can be used with your carrier, please check to make sure that the phone supports the 5G-enabled frequency used by your carrier. For 5G and network compatible-to ensure that this phone can be used with your carrier, please check to make sure that the phone supports the 5G-enabled frequency used by your carrier. This device is unlocked and will be compatible with all major Canadian carriers.

$236.33 - $2,000.00

in 53 offers

The lowest price for Samsung Galaxy S21 Ultra 5G 128 GB Phantom Black right now is $236.33 at eBay.com.au, compared across 19 retailers.

The all-time low was $236.33 on 2 Nov 2026. That's the lowest price we've ever tracked — a great time to buy.

Prices last updated 2 Nov 2026.

Capacity:

(G998b) 128GB
128 GB
256 GB

Colour:

Black
Phantom Black
Phantom Brown
Phantom Navy
Phantom Silver
Phantom Titanium
Silver

Carrier:

Unlocked

Storage Capacity:

128 GB
256 GB

RAM:

750 MB
12 GB
16 GB

Price comparison

Price data powered by pricesAPI.io

Last updated at 02/11/2026 14:17:51

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$436.00

Samsung SM-G998BZKAATS Galaxy S21 Ultra Smartphone 128GB, Phantom Black (Renewed)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$236.33

Samsung Galaxy S21 Ultra - 128 GB - Phantom Black (AT&T)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=mobilefederation.com.au&sz=64Mobile Federation

$379.00

Refurbished Samsung Galaxy S21 Ultra | 24-Month Warranty 128GB / Good / Phantom Black

30-day returns

https://www.google.com/s2/favicons?domain=imrefurbished.com.au&sz=64imrefurbished.com.au

$379.00

Samsung Galaxy S21 Ultra 5G (Refurbished) 128GB / Good / Phantom Black

30-day returns

https://www.google.com/s2/favicons?domain=mobileguru.com.au&sz=64Mobile Guru

$379.00

Samsung Galaxy S21 Ultra 5G 128GB Phantom Black (Refurbished) - 24 Months Warranty

https://www.google.com/s2/favicons?domain=mobileciti.com.au&sz=64Mobileciti

$399.00

Samsung Galaxy S21 Ultra 5G 128GB Black [Open Box] - As New

https://www.google.com/s2/favicons?domain=au.webuy.com&sz=64CeX

$440.00

Samsung Galaxy S21 Ultra 128GB Phantom Black, Unlocked A

Free delivery

https://www.google.com/s2/favicons?domain=becextech.com.au&sz=64BecexTech Australia

$454.00

Samsung Galaxy S21 Ultra 5G (128GB, Black) - Excellent

Free delivery between 5–11 Nov

https://www.google.com/s2/favicons?domain=protechintl.com.au&sz=64ProTech IT Solutions

$459.00

Samsung Galaxy S21 Ultra 5G | 128GB | 12GB RAM | Unlocked

https://www.google.com/s2/favicons?domain=desertcart.com.sa&sz=64desertcart.com.sa

$512.20

Galaxy S21 Ultra 5G, 128GB, Phantom Black - Locked to Verizon (Renewed)

Free delivery between 11–13 Nov

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Display Size6.8 in
Touch ScreenYes
Display Resolution1440 x 3200 pixels
Display Pixel Density515 ppi
Display TechnologyDynamic AMOLED 2X

Price comparison

Updated 5 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$436.00

Samsung SM-G998BZKAATS Galaxy S21 Ultra Smartphone 128GB, Phantom Black (Renewed)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$236.33

Samsung Galaxy S21 Ultra - 128 GB - Phantom Black (AT&T)

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=mobilefederation.com.au&sz=64
Mobile Federation

$379.00

Out of stock

Refurbished Samsung Galaxy S21 Ultra | 24-Month Warranty 128GB / Good / Phantom Black

30-day returns

https://www.google.com/s2/favicons?domain=imrefurbished.com.au&sz=64
imrefurbished.com.au

$379.00

Out of stock

Samsung Galaxy S21 Ultra 5G (Refurbished) 128GB / Good / Phantom Black

30-day returns

https://www.google.com/s2/favicons?domain=mobileguru.com.au&sz=64
Mobile Guru

$379.00

Out of stock

Samsung Galaxy S21 Ultra 5G 128GB Phantom Black (Refurbished) - 24 Months Warranty

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Display Size6.8 in
Touch ScreenYes
Display Resolution1440 x 3200 pixels
Display Pixel Density515 ppi
Display TechnologyDynamic AMOLED 2X

You may also like

Samsung Galaxy S21 5G 128 GB Phantom Violet
Samsung Galaxy S21 5G 128 GB Phantom Violet$259.00 - $2,000.00
★★★★★★★★★★
11,185
Compare 48 offers
Samsung Galaxy S21 Ultra 5G Phantom Silver 128GB
Samsung Galaxy S21 Ultra 5G Phantom Silver 128GB$345.00 - $703.04
★★★★★★★★★★
9,312
Compare 13 offers
- 17%
Samsung Galaxy Z Flip3 5G 8 GB 128 GB Phantom Black
Samsung Galaxy Z Flip3 5G 8 GB 128 GB Phantom Black$296.42 - $1,197.00
★★★★★★★★★★
19,852
Compare 29 offers