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A data-only SIM plan is one that includes a data allowance but doesn't have call minutes or an SMS allowance. This makes a data-only SIM plan a great fit for those with a compatible smartwatch, tablet or laptop that's not used for calls or texting. Alternatively, a data-only plan can be used with a mobile phone that isn't used for calls or SMS.
The usefulness of a data-only SIM card depends on the device. For instance, a data-only SIM card or eSIM is meant for secondary devices, like smartwatches that are used alongside a mobile phone. Alternatively, SIM-compatible tablets and laptops aren't used for mobile calls or SMSes but a data-only SIM is useful for using the internet on these devices via a mobile network.
Note that mobile providers may block regular phone plan SIM cards from being used in data-only devices. Mobile phone SIM cards are designed to be paired with a mobile phone. These allow users to make and receive calls, send and receive SMSes, plus use data for browsing the web. Because of this, mobile phone SIM plans tend to have better overall value.
It is possible to save money by buying a mobile phone SIM plan with more data rather than a mobile phone SIM and a data-only SIM. Modern mobile phones support hotspotting, which lets you share mobile phone plan data with other devices via WiFi. Alternatively, use a data-only SIM card with a WiFi dongle to share data across WiFi devices.
Note that certain mobile providers in Singapore use “data plans” to refer to SIM-only or prepaid mobile plans that come with larger data allowances. These so-called data plans may also include call minutes and SMS allowances, plus other perks like international direct dial (IDD) minutes for overseas calls. Basically, if a SIM plan has call minutes and an SMS allowance, it's not a data-only plan.
Mobile providers like Circles.Life sell data-only plans in Singapore. Other mobile providers lik a href="sg/MobilePhones/Guides/best-starhub-sim-only-plan StarH may offer SIM-only data add-ons or prepaid data top-ups. Duration for these add-ons and top-ups ranges from one day to multiple weeks or months. Here's how the mobile providers that we track look in terms of data-only plans and add-ons:
Yes, there are data-only mobile plans available from providers like Singtel, StarHub and Circles.Life in Singapore. Data-only SIM plans don't come with call minutes or SMSes.
Yes, you can buy just mobile data via a mobile-only SIM plan in Singapore. Alternatively, top up SIM-only or prepaid mobile data via a plan add-on.
A data-only SIM card is meant for second devices or mobile phones that won't need calling minutes or SMSes. Data-only SIM cards offer monthly data but not calls or text.