The cheapest Samsung Galaxy A18 4G 128GB contract costs £345.96 in total over 24 months: £15.00 upfront and £11.99 a month on iD Mobile with 10GB data (4G), from Mobiles.co.uk. To buy it outright, the cheapest Samsung Galaxy A18 4G 128GB is £229.00 from Mobiles.co.uk. Prices checked 30 October 2026.
Best total cost24-month contractUses Three’s network
10GB data (4G)Unlimited minutes & Unlimited textsPay Monthly 10GB
The cheapest deal each day for the Samsung Galaxy A18 4G 128GB new, 24-month contract, in any colour and on any network.
Today£302.76
7 days ago£302.76no change
Based on 16 daily checks since 15 Oct 2026. Today’s price is the cheapest of 168 deals on 4 networks.
Prices are upfront plus monthly cost over the contract, as advertised, before any mid-contract price rises. How we track prices
Changes to the top deal (iD Mobile, 10GB data (4G), Black 128GB)
Date
Upfront
Monthly
Status
19 Oct 2026
£15.00
£11.99
In stock
A row is added when this deal is first listed and whenever its price or stock changes.
Samsung Galaxy A18 4G at a glance
Storage options
128GB
Screen
6.7-inch Super AMOLED display
Processor
Exynos 1610
Selfie camera
13 MP
Water resistance
IP64 dust and water resistant
Network
4G (no 5G)
SIM
nano-SIM and e-SIM
Weight
192g
Size
164.4 x 77.9 x 7.7 mm
Specifications from the retailer’s product data for the 128GB Black model.
Samsung Galaxy A18 4G: your questions answered
What is the cheapest Samsung Galaxy A18 4G deal today?
The cheapest Samsung Galaxy A18 4G 128GB contract costs £345.96 in total over 24 months: £15.00 upfront and £11.99 a month on iD Mobile with 10GB data (4G), from Mobiles.co.uk. To buy it outright, the cheapest Samsung Galaxy A18 4G 128GB is £229.00 from Mobiles.co.uk. Prices checked 30 October 2026.
How much is the Samsung Galaxy A18 4G on contract?
Pay monthly deals for the Samsung Galaxy A18 4G start at £10.99 a month. The cheapest total cost over a 24 or 36-month contract is £345.96, including the upfront cost. Prices change often, so check the deals above for today’s prices.
Which networks have the Samsung Galaxy A18 4G?
We currently compare Samsung Galaxy A18 4G deals on giffgaff, iD Mobile, No Network, O2 and Vodafone.
Can I get the Samsung Galaxy A18 4G on pay as you go?
Yes. We list pay as you go deals for the Samsung Galaxy A18 4G, where you buy the phone and top up as you go, with no credit check.
Does the Samsung Galaxy A18 4G support 5G?
No, the Samsung Galaxy A18 4G supports 4G but not 5G.
About Samsung Galaxy A18 4G deals
We compare 423 in-stock Samsung Galaxy A18 4G deals across 4 networks, in 3 colours, with 128GB storage.
This includes pay monthly and pay as you go deals. Prices start at £10.99 a month, and the cheapest total cost over a 24 or 36-month contract is £345.96. Prices come from retailer feeds and are updated every day. Always check the final price with the retailer before you buy.
Prices last checked 30 Oct 2026 at 13:16. Deals are ranked by total cost, never by commission. We may earn a commission if you buy, at no extra cost to you.
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24-month contract
Uses Three’s network 
