When your mobile connection carries more responsibility, choosing a plan becomes about more than unlimited data. It's about the rewards you'll actually redeem, the roaming you'll actually use, and knowing what matters most.
Discover what's your...
...for your Heavy-Light, Heavy-Medium or Heavy-Heavy lifestyle.
PhoneIsMobile's PPP helps you recognise your level of mobile dependence, compare the right Three plans and choose without paying for benefits you don't need.
PPP Coverage Gate · Signal first
No signal. No conversation.
Before choosing a Three tariff, check 4G calling and mobile data where you live, work and regularly travel. A coverage map is an estimate, not a guarantee of indoor reception.
Good signal? Continue into your Heavy-Light, Heavy-Medium or Heavy-Heavy choice. Poor or unreliable signal where you depend on it? Compare other networks before buying.
The person behind the plan · PiM original spirit
A Heavy user doesn't just carry a phone. They rely on it.
Think of a Heavy mobile user whose phone is already central to everyday life. Calls and messages are just the beginning. For some people it is their main connection to the internet, their entertainment screen, their map, their workspace and their link to friends.
They may send plenty of emails, stream video, use social apps throughout the day, download games and stay connected while travelling. But two Heavy users can live very different mobile lives. One needs dependable data at a sensible price; another needs more speed; another values travel coverage.
That is why PPP has three Heavy personalities: Heavy-Light, Heavy-Medium and Heavy-Heavy. We classify the person first, then find the plan that earns its place.
First: classify the person, not their gigabytes
PPP sequence: PERSON → BEHAVIOUR → CIRCUMSTANCES → PLAN → BENEFITS → REAL ROI → DECISION.
Tariff evidence: Commercial figures below are from Three offers visible on 9 November 2026 (user-captured configurator selections and published Three offers). Offers, code eligibility, checkout totals and plan availability can change. Each guided CTA opens Three’s selector; it does not transfer the selection automatically.
How Heavy users use their data
Where do all those gigabytes go?
Video, games, downloads, video calls, navigation and social apps can all make a mobile connection work harder. The original PhoneIsMobile page called it eating up gigabytes. The idea still works, but there is no single data allowance that fits every Heavy person.
Apps and multitaskingHow often, and where, do you use them?
Data that disappears fastStreaming quality and downloads change the total.
Games and entertainmentDownloads can be large; gameplay requirements differ.
PPP question: Are you using mobile data all day away from Wi-Fi, or mostly at home on Wi-Fi? That one detail can change which Three plan is genuinely worth paying for.
PPP level
Heavy-Light
Three Heavy-Light SIM Only: data breathing room, introductory offers and manageable commitment.
Important everyday mobile dependence with disciplined spending.
HEAVY-LIGHT BASELINE · PROMOTION
120GB Lite
£8.00/month introductory offer
Data 120GBTerm 24 monthsSpeed Full Speed promotional add-onRoaming No inclusive Go Roam
Lots of UK data without buying Unlimited. A strong Heavy-Light starting point when budget matters.
Why this PPP route? · Full price path · Three handover ↓
Why this Three SIM Only plan fits
PPP reason: Six-month half-price promotional structure; verify the exact end date and Full Speed inclusion in your own checkout.
1 24 months2 120GB3 Lite
Displayed starting price: £8.00/month.
Initial six-month promotional charge. Displayed normal rate: £16.00/month. The quoted April promotional step depends on billing dates; see Three’s contractual schedule.
Published/captured price steps:
1 Apr 2027: £9.15 during offer*
May 2027: £18.30
1 Apr 2028: £20.60
Handover: The button below opens Three’s SIM Only builder. Select the three options shown, verify the final price and any add-ons, and check that the terms match. The selection is not transferred automatically.
Official Three selector handover · price captured 9 Nov 2026 · confirm in basket.
SHORTER COMMITMENT
120GB Lite
£18.00/month (captured Three price)
Data 120GBTerm 12 monthsSpeed Up to 100MbpsRoaming No inclusive Go Roam
The same substantial data allowance with a shorter 12-month commitment.
Why this PPP route? · Full price path · Three handover ↓
Why this Three SIM Only plan fits
PPP reason: Suitable when you expect to review your mobile needs sooner; the shorter term is a trade-off, not a free early exit.
1 12 months2 120GB3 Lite
Displayed starting price: £18.00/month.
Published/captured price steps:
1 Apr 2027: £20.30
Handover: The button below opens Three’s SIM Only builder. Select the three options shown, verify the final price and any add-ons, and check that the terms match. The selection is not transferred automatically.
Official Three selector handover · price captured 9 Nov 2026 · confirm in basket.
WI-FI-FIRST ALTERNATIVE · PROMOTION
25GB Lite
£7.00/month introductory offer
Data 25GBTerm 24 monthsSpeed Full Speed promotional add-onRoaming No inclusive Go Roam
For the Heavy-dependent person who uses reliable Wi-Fi for most downloads and keeps mobile data modest.
Why this PPP route? · Full price path · Three handover ↓
Why this Three SIM Only plan fits
PPP reason: 25GB is not enough for every Heavy user. Check your actual mobile-data history before choosing this low-cost option.
1 24 months2 25GB3 Lite
Displayed starting price: £7.00/month.
Initial six-month promotional charge. Displayed normal rate: £14.00/month. The quoted April promotional step depends on billing dates; see Three’s contractual schedule.
Published/captured price steps:
1 Apr 2027: £7.95 during offer*
May 2027: £15.90
1 Apr 2028: £17.80
Handover: The button below opens Three’s SIM Only builder. Select the three options shown, verify the final price and any add-ons, and check that the terms match. The selection is not transferred automatically.
Official Three selector handover · price captured 9 Nov 2026 · confirm in basket.
Compare starting prices only after checking coverage, roaming add-ons, eligibility, allowances and Three's applicable annual changes.
NEWS FLASH! 📡 THREE COVERAGE: THE HEAVY FOUNDATIONVodafoneThree's combined network: what Heavy users need to know ↓
Three Coverage: The Heavy Foundation
VODAFONETHREE'S COMBINED NETWORK: Vodafone and Three completed their UK merger in 2025. In May 2026, they announced a major Multi-Operator Core Network (MOCN) milestone.
What this means for you: Your phone can automatically benefit from more of the combined network's available coverage at participating sites. You don't need to change SIMs or settings; the networks share resources to reduce local dead zones where sharing has been enabled.
PPP Reality Check: This can improve the coverage footprint, but does not guarantee perfect signal everywhere, selection of the numerically strongest mast, or identical indoor reception in all buildings. Heavy users need reliability first, extras second.
Three Heavy-Medium SIM Only: unlimited UK data, one-month flexibility and European roaming alternatives.
Where services, flexibility and usable benefits begin to matter more.
HEAVY-MEDIUM BASELINE · DOMESTIC UNLIMITED
Unlimited Lite
£22.00/month (captured Three price)
Data UnlimitedTerm 24 monthsSpeed Up to 100MbpsRoaming No inclusive Go Roam
Unlimited domestic mobile data and hotspot freedom for customers who use their connection heavily away from Wi-Fi.
Why this PPP route? · Full price path · Three handover ↓
Why this Three SIM Only plan fits
PPP reason: No need to buy premium roaming if you stay in the UK. Three has advertised code 2OFF for £20, but code eligibility must be checked.
1 24 months2 Unlimited3 Lite
Displayed starting price: £22.00/month.
Advertised code 2OFF may reduce the initial Unlimited Lite price to £20 if eligible; do not assume the code applies.
Published/captured price steps:
1 Apr 2027: £24.30
1 Apr 2028: £26.60
Handover: The button below opens Three’s SIM Only builder. Select the three options shown, verify the final price and any add-ons, and check that the terms match. The selection is not transferred automatically.
Official Three selector handover · price captured 9 Nov 2026 · confirm in basket.
FLEXIBILITY ALTERNATIVE · 1 MONTH
Unlimited Lite · 1 month
£18.00/month first-month promotion
Data UnlimitedTerm 1 monthSpeed Up to 100MbpsRoaming No inclusive Go Roam
Useful when your circumstances may change and you prefer a shorter commitment over a low long-term monthly charge.
Why this PPP route? · Full price path · Three handover ↓
Why this Three SIM Only plan fits
PPP reason: A one-month commitment offers flexibility, but costs more than a 24-month plan after the opening promotion. Compare the total cost and cancellation/renewal terms, not just the first month.
1 1 month2 Unlimited3 Lite
Captured introductory price: £18.00 for the first month (advertised 1 month half-price). Normal advertised price: £36.00/month thereafter, subject to Three’s current terms and subsequent price changes.
The first-month price is not the ongoing monthly price. Check whether the offer is available to you and the renewal/cancellation terms.
Handover: On Three’s SIM Only plan builder choose 1 month → Unlimited → Lite; confirm the offer, current price and all contract terms. Selection is not transferred automatically.
Official Three selector handover · price captured 9 Nov 2026 · verify availability and ongoing £36 monthly charge.
EUROPEAN ROAMING ALTERNATIVE
120GB Value
£23.00/month (captured Three price)
Data 120GBTerm 12 monthsSpeed Up to 100MbpsRoaming Eligible Go Roam in Europe (fair use)
An alternative for a Heavy user whose European journeys make inclusive roaming useful, with a 12-month term.
Why this PPP route? · Full price path · Three handover ↓
Why this Three SIM Only plan fits
PPP reason: Value is worth paying for only if you use included travel benefits. Roaming data limits and destination eligibility apply.
1 12 months2 120GB3 Value
Displayed starting price: £23.00/month.
Published/captured price steps:
1 Apr 2027: £25.30
Handover: The button below opens Three’s SIM Only builder. Select the three options shown, verify the final price and any add-ons, and check that the terms match. The selection is not transferred automatically.
Official Three selector handover · price captured 9 Nov 2026 · confirm in basket.
The hidden value test
Three+ perks: valuable only when you actually use them
Before you pay for a premium tariff, ask which benefits you would otherwise buy yourself. A reward you never redeem is not a saving.
Three+ everyday rewards
Coffee treats, cinema offers, food discounts and presales may return value, but availability changes. Count only savings you can honestly expect to redeem.
Go Roam travel benefits
Using your UK allowance abroad can replace separate roaming spend — but only if you actually travel, and only within the 12GB fair-use limit and current destination list.
Three Your Way: check the specific benefits attached to the plan you select.
Three+ & Perks ROI™: what could you genuinely get back?
Some rewards save money on things you already buy. Others give you extra entertainment or travel freedom. Their value stands on its own, but only what you actually use counts as a realised saving.
Explore your Three+ rewards, Paramount+ and Go Roam value ↓
Everyday Three+ rewards
Coffee: If an eligible reward saves you £2 on a coffee you would buy anyway, redeeming it 26 times means £52 saved over a year.
Cinema: If your available offer saves £14 on two tickets you would otherwise purchase, six eligible visits mean £84 saved over a year, before any booking fees.
Food and outings: A genuine £5 saving on six already-planned eligible meals means £30 saved over a year. Restaurant, shopping, family-day-out and theatre offers may add more, but depend on availability and your actual habits.
Illustrative Three+ total: £166 in a year (£52 coffee + £84 cinema + £30 food). This is an example of avoided spending, not a guaranteed reward package or an average customer saving. Check the live Three+ app for current partners, limits and offer codes. Three+ access is not exclusive to premium plan tiers.
Paramount+ entertainment value
Eligible Complete SIM Only plans include Paramount+ for their stated contract term. If you would otherwise buy the equivalent subscription, that expense may be avoided. You can watch on supported phones, tablets and televisions, subject to your subscription's device, casting and simultaneous-stream rules.
PPP test: Films you already pay to watch can produce a cash saving. Films you would never have purchased are an entertainment benefit, not money returned to your bank account. Confirm the included Paramount+ tier and duration before assigning a retail value.
Go Roam travel value
Eligible Value plans include European Go Roam access; eligible Complete plans extend to wider worldwide destinations. Travel value is the roaming charge or alternative travel-data cost you would genuinely have paid, not the headline size of the destination list.
PPP test: If you don't travel, your realised roaming cash saving is £0. If you do, check your destinations, pass entitlements, fair use (including the relevant roaming data limit) and any excluded services before counting a saving.
What belongs in the total?
Real Plan ROI™ = eligible Three+ spending avoided + equivalent subscription spending avoided + eligible roaming spending avoided. Keep these separate from your monthly tariff charge; do not count the same benefit twice or treat a prize draw, unused voucher or future resale estimate as guaranteed cash.
Three Heavy-Heavy SIM Only: Full Speed, Unlimited data, European and worldwide travel benefits.
For intense everyday dependence, with a firm check on what you really use.
HEAVY-HEAVY · PERFORMANCE
Unlimited Lite+
£26.00/month (captured Three price)
Data UnlimitedTerm 24 monthsSpeed Full Speed includedRoaming No inclusive Go Roam
For domestic power users who want Unlimited data with the 100Mbps cap removed.
Why this PPP route? · Full price path · Three handover ↓
Why this Three SIM Only plan fits
PPP reason: Full Speed removes the plan cap; it does not guarantee faster throughput in every location. Test actual coverage and congestion.
1 24 months2 Unlimited3 Lite+
Displayed starting price: £26.00/month.
Published/captured price steps:
1 Apr 2027: £28.30
1 Apr 2028: £30.60
Handover: The button below opens Three’s SIM Only builder. Select the three options shown, verify the final price and any add-ons, and check that the terms match. The selection is not transferred automatically.
Official Three selector handover · price captured 9 Nov 2026 · confirm in basket.
EUROPEAN TRAVEL ALTERNATIVE
Unlimited Value
£34.00/month (captured Three price)
Data UnlimitedTerm 24 monthsSpeed Up to 100MbpsRoaming Eligible Go Roam in Europe (fair use)
Unlimited UK use plus eligible European roaming, for travellers who can justify the extra cost.
Why this PPP route? · Full price path · Three handover ↓
Why this Three SIM Only plan fits
PPP reason: Compare this against Complete before buying: the captured Complete offer is actually cheaper and needs eligibility testing.
1 24 months2 Unlimited3 Value
Displayed starting price: £34.00/month.
Published/captured price steps:
1 Apr 2027: £36.30
1 Apr 2028: £38.60
Handover: The button below opens Three’s SIM Only builder. Select the three options shown, verify the final price and any add-ons, and check that the terms match. The selection is not transferred automatically.
Official Three selector handover · price captured 9 Nov 2026 · confirm in basket.
WORLDWIDE VALUE · PRICE NEEDS CONFIRMATION
Unlimited Complete
£28.00/month (captured Three price)
Data UnlimitedTerm 24 monthsSpeed Up to 100MbpsRoaming Eligible roaming in 160+ destinations (fair use)
Potentially exceptional value for international travellers, with Paramount+ for the selected term.
Why this PPP route? · Full price path · Three handover ↓
Why this Three SIM Only plan fits
PPP reason: £28 appeared in the captured Three builder, but is below the captured £34 Value option. Treat as conditional until new-customer basket eligibility is confirmed.
1 24 months2 Unlimited3 Complete
Displayed starting price: £28.00/month.
Published/captured price steps:
1 Apr 2027: £30.30
1 Apr 2028: £32.60
Eligibility check: This unusually low Complete price requires confirmation in a new-customer basket before publication as a guaranteed offer.
Handover: The button below opens Three’s SIM Only builder. Select the three options shown, verify the final price and any add-ons, and check that the terms match. The selection is not transferred automatically.
Official Three selector handover · price captured 9 Nov 2026 · confirm in basket.
🛰️ VodafoneThree and Satellite-to-Phone: What's Coming?
VodafoneThree is developing direct-to-device satellite connectivity with AST SpaceMobile using low-Earth-orbit satellites and ordinary compatible smartphones.
Important: This is future-facing network education. Satellite connectivity is NOT a currently included retail feature on Three Lite, Lite+, Value, or Complete plans. Do not factor it into your current purchasing decision.
Text PAC to 65075 from the number you want to keep, then provide the PAC to Three when transferring. Check your current provider's contract and any exit charges before moving.
Final decision: the PPP crescendo
Compare all nine Three Heavy SIM Only routes
PPP tier
Route
Three plan
Data
Commitment
Roaming
Starting monthly
Heavy-Light
BASELINE24 months → 120GB → Lite
120GB Lite
120GB
24 months
No inclusive Go Roam
£8.00 intro
Heavy-Light
ALTERNATIVE12 months → 120GB → Lite
120GB Lite
120GB
12 months
No inclusive Go Roam
£18.00 captured
Heavy-Light
ALTERNATIVE24 months → 25GB → Lite
25GB Lite
25GB
24 months
No inclusive Go Roam
£7.00 intro
Heavy-Medium
BASELINE24 months → Unlimited → Lite
Unlimited Lite
Unlimited
24 months
No inclusive Go Roam
£22.00 captured
Heavy-Medium
ALTERNATIVE1 month → Unlimited → Lite
Unlimited Lite
Unlimited
1 month
No inclusive Go Roam
£18.00 intro; £36.00 thereafter captured
Heavy-Medium
ALTERNATIVE12 months → 120GB → Value
120GB Value
120GB
12 months
Eligible Go Roam in Europe (fair use)
£23.00 captured
Heavy-Heavy
BASELINE CANDIDATE24 months → Unlimited → Lite+
Unlimited Lite+
Unlimited
24 months
No inclusive Go Roam
£26.00 captured
Heavy-Heavy
ALTERNATIVE24 months → Unlimited → Value
Unlimited Value
Unlimited
24 months
Eligible Go Roam in Europe (fair use)
£34.00 captured
Heavy-Heavy
ALTERNATIVE · ELIGIBILITY CHECK24 months → Unlimited → Complete
Unlimited Complete
Unlimited
24 months
Eligible roaming in 160+ destinations (fair use)
£28.00 captured
The Route column shows the exact three selections to make in Three’s plan builder. It does not automatically transfer your choice. Open Three’s SIM Only builder →
All nine CTAs use guided selection on Three, rather than untested baskets or third-party affiliate codes. The displayed prices originate from the 9 November 2026 capture and may change. The £28 Complete offer requires eligibility confirmation; introductory offers need the full payment schedule checked.
The original PiM promise
Make good choices. Don't pay for the wrong plan.
Our choices are researched choices, selected from researched options. Your real mobile behaviour helps decide which one deserves your money.
Phone companies may offer tempting prices, big data allowances and extra rewards. None of those automatically makes a tariff right for you. Look beyond the headline: check real coverage, full contract cost, the extras you'll actually use and the exact plan offered at checkout.
Choose the wrong tariff and the surprise may come later. Choose with PPP, and at least you know which questions to ask before you spend.
3 Sim Only Heavy User
Advantages of SIM only contracts
Changing network provider is easy, with SIM only contracts you’re not chained into long contracts in case of problems with reception and coverage.
Always usually there's more talk-time minutes with more texts than a mobile phone contract or pay-as-you-go package.
Unlike PAYG were you use some time topping up, you don’t have to do that with SIM only-contracts.
As there is no phone included in the package calls, texts and other phone services cost much less.
Accessing social network sites are sometimes included in the monthly fee, some include extras and incentives such as Netflix, Sky, Spotify for the first 6 months free.
3 Sim Only Light User
3 Sim Only Medium User
3 Sim Only Heavy User
Disadvantages of SIM-only contracts.
Wow only two.......
you provide the phone.
you'll need to unlock the phone if changing networks.
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Apps and multitasking
Data that disappears fast
Games and entertainment
HEAVY-LIGHT BASELINE · PROMOTION
