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Xiaomi 12

Xiaomi 12

Operating System Android
Camera 50 Megapixels
Display Size 6.28 inches
Capacity 256Gb
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Xiaomi 12 SIM Free Deals

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Xiaomi 12 Deals

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256GB
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Xiaomi 12

Xiaomi 12, 256GB Grey

£21.17 per month

Total Cost: £1,186.82

VIEW DEAL
via Three

Monthly Price increases to £23.47 on 1st April 2027 and to £25.77 on 1st April 2028

150GB data
£335.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£21.17 per month

Total Cost: £1,186.82

VIEW DEAL
via Three

Monthly Price increases to £23.47 on 1st April 2027 and to £25.77 on 1st April 2028

150GB data
£335.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12

Xiaomi 12, 256GB Grey

£22.97 per month

Total Cost: £1,186.62

VIEW DEAL
via Three

Monthly Price increases to £25.27 on 1st April 2027 and to £27.57 on 1st April 2028

150GB data
£270.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£22.97 per month

Total Cost: £1,186.62

VIEW DEAL
via Three

Monthly Price increases to £25.27 on 1st April 2027 and to £27.57 on 1st April 2028

150GB data
£270.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12

Xiaomi 12, 256GB Grey

£24.92 per month

Total Cost: £1,186.82

VIEW DEAL
via Three

Monthly Price increases to £27.22 on 1st April 2027 and to £29.52 on 1st April 2028

150GB data
£200.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£24.92 per month

Total Cost: £1,186.82

VIEW DEAL
via Three

Monthly Price increases to £27.22 on 1st April 2027 and to £29.52 on 1st April 2028

150GB data
£200.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£26.17 per month

Total Cost: £1,366.82

VIEW DEAL
via Three

Monthly Price increases to £28.47 on 1st April 2027 and to £30.77 on 1st April 2028

Extended Warranty Peace of mind with an extended device warranty for up to 36 months. Inclusive EU Roaming Use your allowances like you’re at home in European Countries. 12GB Data Limit Applies. 12 months Paramount+ Peak entertainment – included with your plan for 12 months. Immerse yourself in hit movies, exclusive premieres, and brilliant original shows you can’t find anywhere else with Paramount+. Even on the go.
150GB data
£335.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12

Xiaomi 12, 256GB Grey

£26.17 per month

Total Cost: £1,366.82

VIEW DEAL
via Three

Monthly Price increases to £28.47 on 1st April 2027 and to £30.77 on 1st April 2028

Extended Warranty Peace of mind with an extended device warranty for up to 36 months. Inclusive EU Roaming Use your allowances like you’re at home in European Countries. 12GB Data Limit Applies. 12 months Paramount+ Peak entertainment – included with your plan for 12 months. Immerse yourself in hit movies, exclusive premieres, and brilliant original shows you can’t find anywhere else with Paramount+. Even on the go.
150GB data
£335.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12

Xiaomi 12, 256GB Grey

£26.72 per month

Total Cost: £1,186.62

VIEW DEAL
via Three

Monthly Price increases to £29.02 on 1st April 2027 and to £31.32 on 1st April 2028

150GB data
£135.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£26.72 per month

Total Cost: £1,186.62

VIEW DEAL
via Three

Monthly Price increases to £29.02 on 1st April 2027 and to £31.32 on 1st April 2028

150GB data
£135.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12

Xiaomi 12, 256GB Grey

£27.17 per month

Total Cost: £1,387.22

VIEW DEAL
via Three

Monthly Price increases to £29.07 on 1st April 2027 and to £30.97 on 1st April 2028

5GB data
£335.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£27.17 per month

Total Cost: £1,387.22

VIEW DEAL
via Three

Monthly Price increases to £29.07 on 1st April 2027 and to £30.97 on 1st April 2028

5GB data
£335.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£27.97 per month

Total Cost: £1,366.62

VIEW DEAL
via Three

Monthly Price increases to £30.27 on 1st April 2027 and to £32.57 on 1st April 2028

Extended Warranty Peace of mind with an extended device warranty for up to 36 months. Inclusive EU Roaming Use your allowances like you’re at home in European Countries. 12GB Data Limit Applies. 12 months Paramount+ Peak entertainment – included with your plan for 12 months. Immerse yourself in hit movies, exclusive premieres, and brilliant original shows you can’t find anywhere else with Paramount+. Even on the go.
150GB data
£270.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12

Xiaomi 12, 256GB Grey

£27.97 per month

Total Cost: £1,366.62

VIEW DEAL
via Three

Monthly Price increases to £30.27 on 1st April 2027 and to £32.57 on 1st April 2028

Extended Warranty Peace of mind with an extended device warranty for up to 36 months. Inclusive EU Roaming Use your allowances like you’re at home in European Countries. 12GB Data Limit Applies. 12 months Paramount+ Peak entertainment – included with your plan for 12 months. Immerse yourself in hit movies, exclusive premieres, and brilliant original shows you can’t find anywhere else with Paramount+. Even on the go.
150GB data
£270.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£28.17 per month

Total Cost: £1,423.22

VIEW DEAL
via Three

Monthly Price increases to £30.07 on 1st April 2027 and to £31.97 on 1st April 2028

15GB data
£335.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12

Xiaomi 12, 256GB Grey

£28.17 per month

Total Cost: £1,423.22

VIEW DEAL
via Three

Monthly Price increases to £30.07 on 1st April 2027 and to £31.97 on 1st April 2028

15GB data
£335.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12

Xiaomi 12, 256GB Grey

£28.53 per month

Total Cost: £1,186.78

VIEW DEAL
via Three

Monthly Price increases to £30.83 on 1st April 2027 and to £33.13 on 1st April 2028

150GB data
£70.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£28.53 per month

Total Cost: £1,186.78

VIEW DEAL
via Three

Monthly Price increases to £30.83 on 1st April 2027 and to £33.13 on 1st April 2028

150GB data
£70.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12

Xiaomi 12, 256GB Grey

£28.97 per month

Total Cost: £1,387.02

VIEW DEAL
via Three

Monthly Price increases to £30.87 on 1st April 2027 and to £32.77 on 1st April 2028

5GB data
£270.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
Xiaomi 12 5G Dual SIM 256GB Purple

Xiaomi 12 5G Dual SIM 256GB Purple, 256GB Purple

£28.97 per month

Total Cost: £1,387.02

VIEW DEAL
via Three

Monthly Price increases to £30.87 on 1st April 2027 and to £32.77 on 1st April 2028

5GB data
£270.00 device cost
Unlimited minutes
Unlimited texts
36 month contract
VIEW MORE DEALS

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: £1,715
  • Lowest total cost: £1,187
  • £0 upfront options: 0 deals
  • Typical contract length: 36 months
  • Average data allowance: 98GB

Deals are currently available on Three.

Three

Last updated: 06 Apr 2026 from 252 live offers

Xiaomi 12 Specification

  • Operating System: Android
  • Camera: 50 Megapixels
  • Display Size: 6.28 inches
  • Display Type: AMOLED
  • Capacity: 256Gb
  • eSIM Compatible: No
  • Weight: 179 grams
  • Resolution: 1080 x 2400
  • Primary Camera: 50 Megapixels
  • Primary Camera Flash: Dual-LED
  • Secondary Camera: 32 Megapixels
  • Dimensions: 152.7 x 69.9 x 8.2 mm
  • Processor: Octa-core
  • Chipset: Qualcomm SM8450 Snapdragon 8
  • SIM Type: Nano-SIM
  • Bluetooth: 5.2, A2DP, LE
  • WiFi: 802.11 a/b/g/n/ac/6
  • Battery: Li-Po 4500 mAh

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

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