When you buy a travel eSIM from TPG Mobile, you need a phone that supports eSIM technology. Voice over LTE (VoLTE) is a separate feature that affects call quality on some networks. This page explains how to check both on your device, without relying on a single model list.
What is eSIM and why does it matter for travel?
An eSIM is a digital SIM card built into your mobile phone. Instead of inserting a physical SIM, you download a data plan profile. For Singapore-based travellers, this means you can set up your overseas data before leaving home and connect as soon as you land. You do not need to find a local shop or carry a spare SIM card.
Not every phone has eSIM support. Apple iPhones from the iPhone XS and newer models generally include it, but many Android devices vary by region and model. Even if a phone model is known to support eSIM, the specific variant sold in Singapore may differ. Always check your device settings or the manufacturer’s official page for your exact model number.
How to check eSIM compatibility on your phone
The quickest way to confirm eSIM support is through your phone’s settings menu. This check works regardless of your current carrier or whether you have already installed an eSIM profile.
- iPhone: Go to Settings > Mobile Data or Cellular. If you see an option to “Add Data Plan” or “Add eSIM”, your iPhone supports eSIM.
- Android (most brands): Open Settings > Network & Internet > SIM cards or Connections > SIM card manager. Look for an “Add eSIM” or “Add mobile plan” option. If the option is missing, your phone may not support eSIM in that region.
- Check the IMEI: Some manufacturers offer an online IMEI checker. Enter your device’s IMEI number (found in Settings > About phone or by dialling *#06#) to see if your exact model supports eSIM.
- iPhone: Go to Settings > Mobile Data > Mobile Data Options. If you see “Voice & Data” and can select “VoLTE”, your iPhone supports VoLTE on the current carrier.
- Android: Look in Settings > Network & Internet > Mobile network, or Settings > Connections > Mobile networks. Find the “VoLTE” or “Enhanced 4G LTE” toggle. If the option is greyed out, your carrier may not have enabled it for your plan.
- Purchase a TPG Mobile travel eSIM plan that matches your destination and data needs. Choose the amount of data based on your usual usage, not just the trip length.
- Install the eSIM profile before departure. You will receive a QR code or an installation link. Make sure you have a stable internet connection during setup.
- Keep your usual Singapore SIM card in the phone. You can set the travel eSIM as the data line while keeping your local SIM active for calls and texts, if your phone supports dual SIM.
- Test the eSIM connection after installation by turning on mobile data and checking for signal. Do this while still in Singapore if possible, but note that the data plan activates only when you reach the destination.
- On arrival, if you do not connect automatically, go to your phone’s mobile network settings and select the eSIM as the data line. You may also need to enable data roaming for that specific eSIM profile.
If your phone does not have eSIM, you cannot use a TPG Mobile travel eSIM on that device. You would need a physical SIM card or a different phone that supports eSIM.
What is VoLTE and how is it different?
VoLTE stands for Voice over LTE. It allows voice calls to be carried over the 4G LTE network instead of falling back to older 2G or 3G networks. For travellers, VoLTE can mean faster call setup and better call quality when you make calls abroad, especially if you use a local SIM or a roaming service.
VoLTE is not the same as eSIM. A phone can support eSIM but not VoLTE on a particular network, or vice versa. Compatibility depends on three factors: the phone model, the network operator, and the software version. TPG Mobile’s eSIM service provides data for overseas travel; it does not provide a Singapore mobile number or voice service. Therefore, VoLTE on a TPG Mobile plan is not relevant to this travel eSIM product.
How to check VoLTE support on your phone
VoLTE support is usually indicated in your phone’s network settings. The exact location varies by brand and Android version, but the general steps are similar.
Keep in mind that VoLTE availability also depends on the network operator you are using. Even if your phone has the toggle, your carrier must support VoLTE for your specific device model. When travelling, the local network’s VoLTE coverage may differ from what you see in Singapore.
Carrier unlocking and its effect on eSIM
A carrier-unlocked phone gives you more freedom to use eSIM profiles from different providers. If your phone is locked to a specific Singapore carrier, you may not be able to add an eSIM from another provider, including TPG Mobile’s travel eSIM. Check with your current carrier whether your device is unlocked. Many carriers unlock phones after the contract period ends, but policies vary.
To check if your phone is unlocked, insert a SIM card from a different carrier and see if it connects. Alternatively, contact your carrier’s customer service. If your phone is locked, you will need to request an unlock before you can use a travel eSIM.
Practical steps before you travel
Once you have confirmed that your phone supports eSIM and is unlocked, follow these steps to prepare for your trip.
What to do if your phone is not compatible
If your phone does not support eSIM, you have a few options. You can use a physical SIM card for travel, but TPG Mobile’s travel eSIM product does not include a physical SIM. You could also consider upgrading to a newer phone that supports eSIM, but that is a significant cost. Alternatively, you might use a portable Wi-Fi device that accepts a physical SIM, though that adds another device to carry.
Before purchasing a travel eSIM, confirm that your phone model is compatible. The TPG Mobile website provides a list of supported devices for its eSIM service, but this list may change as new phones are released. Always check the latest information on the product page or contact customer support if you are unsure.
Why compatibility checks are not one-size-fits-all
There is no single list of every phone that supports eSIM and VoLTE. Manufacturers update their devices, carriers enable features at different times, and software versions can change settings. A phone that works with eSIM today may lose that support after a major operating system update, or a new model may gain it later.
For this reason, the most reliable approach is to check your specific device settings and consult the manufacturer’s official documentation. If you are using a TPG Mobile travel eSIM, you can also contact TPG Mobile’s customer support for guidance on your particular phone model.
Summary: eSIM and VoLTE are separate checks
Before you buy a travel eSIM from TPG Mobile, verify that your phone supports eSIM. VoLTE is a separate feature that affects voice calls on some networks, but it is not required for using a travel data eSIM. Always check your device settings, confirm your phone is carrier-unlocked, and test the eSIM setup before you leave Singapore. This approach avoids surprises at the airport and helps you stay connected on your holiday or business trip.
