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Samsung Galaxy S21

Samsung Galaxy S21

Operating System Android
Camera 64 Megapixels
Display Size 6.2 inches
Capacity 128Gb
View full spec >

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Samsung Galaxy S21 Deals

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Samsung Galaxy S21

Samsung Galaxy S21, 128GB Phantom Grey (Refurbished)

£17.99 per month

Total Cost: £456.96

VIEW DEAL
via ID Mobile

Monthly Price increases to £19.79 on 1st April 2027

Powered By: Three Powered By: Three Free EU roaming Roam free in 50 destinations throughout the EU, EEA and beyond. Use your minutes, texts and data, up to 30GB, while roaming abroad (subject to your allowance, and ID Mobile fair usage & open data policies).
10GB data
FREE device
Unlimited minutes
Unlimited texts
24 month contract
Samsung Galaxy S21

Samsung Galaxy S21, 128GB Phantom Grey (Refurbished)

£18.99 per month

Total Cost: £480.96

VIEW DEAL
via ID Mobile

Monthly Price increases to £20.79 on 1st April 2027

Powered By: Three Powered By: Three Free EU roaming Roam free in 50 destinations throughout the EU, EEA and beyond. Use your minutes, texts and data, up to 30GB, while roaming abroad (subject to your allowance, and ID Mobile fair usage & open data policies).
100GB data
FREE device
Unlimited minutes
Unlimited texts
24 month contract
Samsung Galaxy S21

Samsung Galaxy S21, 128GB Phantom Grey (Refurbished)

£18.99 per month

Total Cost: £489.96

VIEW DEAL
via ID Mobile

Monthly Price increases to £20.79 on 1st April 2027

Powered By: Three Powered By: Three Free EU roaming Roam free in 50 destinations throughout the EU, EEA and beyond. Use your minutes, texts and data, up to 30GB, while roaming abroad (subject to your allowance, and ID Mobile fair usage & open data policies).
200GB data
£9.00 device cost
Unlimited minutes
Unlimited texts
24 month contract
Samsung Galaxy S21

Samsung Galaxy S21, 128GB Phantom Grey (Refurbished)

£19.99 per month

Total Cost: £504.96

VIEW DEAL
via ID Mobile

Monthly Price increases to £21.79 on 1st April 2027

Powered By: Three Powered By: Three Free EU roaming Roam free in 50 destinations throughout the EU, EEA and beyond. Use your minutes, texts and data, up to 30GB, while roaming abroad (subject to your allowance, and ID Mobile fair usage & open data policies).
500GB data
FREE device
Unlimited minutes
Unlimited texts
24 month contract
Samsung Galaxy S21

Samsung Galaxy S21, 128GB Phantom Grey (Refurbished)

£20.99 per month

Total Cost: £528.96

VIEW DEAL
via ID Mobile

Monthly Price increases to £22.79 on 1st April 2027

Powered By: Three Powered By: Three Free EU roaming Roam free in 50 destinations throughout the EU, EEA and beyond. Use your minutes, texts and data, up to 30GB, while roaming abroad (subject to your allowance, and ID Mobile fair usage & open data policies).
Unlimited data
FREE device
Unlimited minutes
Unlimited texts
24 month contract
Samsung Galaxy S21

Samsung Galaxy S21, 128GB Phantom Grey (Refurbished)

£21.99 per month

Total Cost: £561.96

VIEW DEAL
via ID Mobile

Monthly Price increases to £23.79 on 1st April 2027

Powered By: Three Powered By: Three Free EU roaming Roam free in 50 destinations throughout the EU, EEA and beyond. Use your minutes, texts and data, up to 30GB, while roaming abroad (subject to your allowance, and ID Mobile fair usage & open data policies).
Unlimited data
£9.00 device cost
Unlimited minutes
Unlimited texts
24 month contract
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We may earn a commission if you click through and purchase via our links. This does not affect how deals are ranked or selected.

Live deal insights

Contract deals — price snapshot

  • Average total cost: £504
  • Lowest total cost: £457
  • £0 upfront options: 4 deals
  • Typical contract length: 24 months
  • Average monthly (24-month): £21
  • Average data allowance: 198GB

Zero-upfront plans are widely available for this model.

Deals are currently available on iD Mobile.

iD Mobile

Last updated: 11 Apr 2026 from 6 live offers

Samsung Galaxy S21 Specification

  • Operating System: Android
  • Camera: 64 Megapixels
  • Display Size: 6.2 inches
  • Display Type: Dynamic AMOLED 2X
  • Capacity: 128Gb
  • eSIM Compatible: Yes
  • Weight: 171 grams
  • Resolution: 1080 x 2400
  • Primary Camera: 64 Megapixels
  • Primary Camera Flash: LED flash
  • Secondary Camera: 10 Megapixels
  • Dimensions: 151.7 x 71.2 x 7.9 mm
  • Processor: Info unavailable
  • Chipset: Exynos 2100
  • SIM Type: Nano-SIM
  • Bluetooth: 5.0 with A2DP, LE
  • WiFi: 802.11 a/b/g/n/ac/6
  • Battery: Li-Ion 4000 mAh
  • IP Rating: IP53

Specifications are provided by the manufacturer and may vary by region.

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