A closer look at the current service.
SMARTY now documents eSIM alongside physical SIMs, including replacement of an existing physical SIM through the dashboard. Its current help says data-discount plans have been discontinued. Existing customers may retain a discontinued plan, but cannot return after switching away; unused data discount does not transfer to the new plan. Older descriptions of automatic credit for unused data therefore need a clear legacy-plan qualification.
Introduction: what to know about SMARTY
SMARTY is a UK SIM-focused service whose network is supplied through Three. Following the Vodafone and Three combination, SMARTY continues to publish its own customer guidance. Read that guidance for the SMARTY product. This profile separates background, service features and account processes. Keep your exact product name and start date available: current descriptions and older agreements can differ.
History and development
SMARTY launched in August 2017 as a SIM-focused alternative using Three connectivity. Its own retrospective describes an initially small operation and subsequent product development. After the Vodafone and Three combination, SMARTY continues to publish its own service conditions and support information.
Features and useful distinctions
The current catalogue separates rolling monthly, data-only and group plans. A data-only product is not equivalent to a normal calling-and-texting line. Group-account arrangements also deserve separate consideration of who controls each connection and its renewal.
SIM options and plan information
SMARTY’s core range is SIM-focused. Choose the relevant phone or data-only category, then check allowances and the renewal process. An existing compatible handset can be retained; confirm the required calling technology and settings before moving a number.
Phone contracts and device options
No SMARTY-financed handset contract was verified in the reviewed official catalogue. Treat SMARTY as a SIM service for a separately obtained compatible device. A handset financed elsewhere remains governed by that separate agreement and is not settled by changing the SMARTY SIM.
Pay monthly: how it is structured
The normal SMARTY model is an allowance paid in advance for a month rather than a conventional long handset contract. Renewal settings still matter. Read how stopping renewal, changing the plan and managing a group affect the next period.
Pay as you go: what to check
SMARTY’s prepaid monthly model should not be mistaken for unrestricted traditional usage-only PAYG. Its out-of-plan balance supports certain additional use, but the rules for that balance are distinct from the monthly allowance. Confirm whether an active plan is needed for the functions you want.
Bills, payments and additional use
Use the SMARTY dashboard or app to review plan payments, renewal and any out-of-plan balance. A prepaid payment history does not have the same structure as a postpaid usage bill. Keep the date a plan change was requested and the period to which it applies.
PAC codes and keeping your number
Use SMARTY’s keep-your-number instructions for the receiving SIM. Confirm the transfer date and retain access to the dashboard. If you have a data-only connection, establish whether it supports the number-transfer use you intend before proceeding. For the standard single-number process, text PAC to 65075 to request a code to retain your number. The code is valid for 30 days. Follow any additional verification required by your provider. Give the PAC to the receiving provider through its official route; do not separately close the old line before confirming the transfer sequence.
eSIM, phone compatibility and setup
Confirm SMARTY’s current eSIM support for your exact product and handset model. A provider may support a feature on some products but not every legacy arrangement. Read activation, replacement and transfer instructions before deleting an existing profile. With two SIMs active, check the default lines for calls, messages and data, including automatic data switching.
Coverage, roaming and travel
SMARTY’s travel guidance distinguishes roaming from international use. Check the applicable allowance and the phone settings required abroad. Overseas reception comes from a local network and may differ from your UK experience. Check the official coverage and service-status information for your important locations. A coverage prediction is not a guarantee of indoor reception. For overseas use, verify your specific destination, account conditions and activation requirements; international calls from the UK are a separate category.
Official support and the next step
Use SMARTY’s official support for account changes, lost SIMs, disputed payments, formal complaints and security concerns. For a connection issue, keep the device model, time, location and checks already completed. mosaicskiyo can explain general information but cannot access the account or represent you. Take this question to the provider: When will a plan change or renewal instruction take effect?
Take these checks with you.
- When will a plan change or renewal instruction take effect?
- Have I checked the current rules for this exact product?
- Have I separated airtime, device and additional-use obligations?
Check the original sources
These references lead to the relevant provider or regulator. Conditions can change and legacy products may differ. Confirm the current position for your own account.
Always confirm current details with the official provider. mosaicskiyo is independent and provides general guidance only.