Local SIM, eSIM, Pocket WiFi, or Data Roaming?

When travelling internationally, staying connected is essential. Whether you need to navigate through new cities, keep in touch with friends and family or post on social media, reliable mobile connectivity is crucial. As most of you may have already known, there are several options to choose from such as a local SIM card, eSIM, pocket WiFi and data roaming. Each option comes with its own pros and cons, and the best choice depends on your travel needs, budget and destination.

Here’s a detailed comparison of each option, including their benefits and drawbacks.

1. Local SIM Cards

A local SIM card is one of the most popular choices for travellers. You buy a SIM card from a local telecom provider upon arrival, insert it into your phone and get access to data and local calls at local rates.

Pros:

• Cost-effective: Local SIM cards are usually affordable and offer various prepaid data plans tailored to your needs. For example, in countries like Thailand, Indonesia or Vietnam, you can get a SIM card with 10GB of data for as little as RM20–RM40.
• Great coverage: In most countries, local networks provide good coverage in both urban and rural areas. For example, in Singapore or Malaysia, you’ll experience strong 4G/5G signals throughout the city and in Thailand, even smaller towns have decent connectivity.
• Flexible options: Local SIM cards come with various data packages, including unlimited data for a specific period.

(Source: iamkohchang.com)

Cons:

• Changing SIMs: You need to swap out your home SIM card for the local one, which may cause issues if you need your home number for verification purposes or emergencies.
• Complicated setup: Depending on the country, buying a local SIM card may require specific documentation (usually passport), and the process may be time-consuming, especially in busy tourist areas.
• Limited to one country: A local SIM card only works in the country where it was purchased, so if you are visiting multiple countries, you’ll need to buy a new SIM card for each one.

2. eSIM 

An eSIM (embedded SIM) is a digital SIM that allows you to activate a cellular plan without the need for a physical SIM card. Many modern smartphones support eSIM, including devices from Apple, Samsung and Google.

Pros:

• Convenience: eSIMs allow you to activate a plan digitally without needing to swap SIM cards or physically visit a store. You can purchase easily via Klook or Trip.com and activate your plan online, making it especially convenient for short-term trips across multiple countries.

• Multiple countries coverage: Some eSIM providers offer international data plans that work in several countries, including SEA and Europe. For example, an eSIM from providers like Airalo or Holafly can cover several countries like Thailand, Malaysia, Singapore, France, Spain and Germany with a single plan.
• Bypassing restrictions: In countries like China, where apps like Facebook, WhatsApp, Instagram and other social media platforms are blocked, eSIMs can be particularly useful. You can opt for international eSIM plans that allow you to access these apps (with/without VPN or other workarounds), bypassing the local restrictions imposed by the country’s internet infrastructure.

Cons:

• Device compatibility: Not all devices support eSIM, so you need to check if your phone is compatible before relying on this option.
• Initial setup may require technical knowledge: Some eSIM plans require you to enter an activation code or use a QR code, which may be intimidating for non-tech-savvy travellers.
• Limited availability: While eSIMs are becoming more common, not all countries or telecom providers support eSIM, and availability may vary depending on your destination.

3. Pocket WiFi

A pocket WiFi device is a portable router that provides internet access by connecting to a local mobile network. You can rent a pocket WiFi device in advance or upon arrival at the airport.

Pros:

• Multiple devices: You can connect multiple devices (smartphone, laptop, tablet) to a pocket WiFi, which is ideal for families or small groups travelling together.
• No SIM card swaps: Since you don’t need a SIM card, you can use your home number and avoid the hassle of swapping SIM cards or dealing with eSIM setups.
• Good coverage: In countries like Japan, South Korea and Singapore, pocket WiFi devices offer strong and reliable internet, even in rural or less accessible areas.

Cons:

• Renting and carrying a device: You need to rent the device (usually online or at the airport), and then carry an extra gadget with you. This can be cumbersome, especially for solo travellers or those with limited luggage space.
• Cost: Renting a pocket WiFi device can be more expensive than buying a local SIM or eSIM, particularly for longer stays. The daily rental rate can range from RM20 to RM40 per day in countries like Japan or South Korea.
• Battery management: Pocket WiFi devices need to be charged, and they may run out of battery quickly if used with multiple devices throughout the day. You may need to carry a power bank to ensure you can charge the pocket WiFi when the battery is low.

4. Data Roaming

Data roaming is the option where you use your home country’s mobile network while abroad, either via an international roaming plan or by paying for roaming charges.

Pros:

• No need to change SIM cards: With data roaming, you don’t have to worry about swapping SIM cards or setting up an eSIM. This is perfect for travellers who need to stay connected without dealing with SIM cards or device rentals.
• Simple setup: Most mobile providers offer international roaming plans, so you can activate it with a simple call or online request before your trip. For example, providers like Maxis and CelcomDigi in Malaysia offer global roaming packages that cover most of Southeast Asia and Europe.

• Stay connected with your home number: Roaming allows you to keep using your regular number, making it easy for people to reach you especially for business travellers.

Cons:

• Hidden charges: There may be hidden charges that you aren’t aware of, such as in-flight roaming where your SIM may automatically connect to a satellite network while flying. It’s important to call your telco provider to clarify roaming charges and ensure you understand all potential costs. Your provider will guide you on which roaming options to choose or avoid to prevent unexpected fees.
• Limited coverage: Depending on your provider, you may not get the best coverage or speeds in certain countries. For example, roaming in more remote regions of Southeast Asia might result in slower speeds or no connectivity at all.
• Unpredictable costs: Without a suitable roaming plan, costs can spiral quickly, and you might end up with unexpected charges on your bill.

In a nutshell, the best connectivity option for your trip depends on your travel preferences, duration of stay and budget. Consider your travel plans, compare the options and choose the one that best fits your needs!

For more travel tips, helpful information and unique ideas to make your travels smoother and more enjoyable, head on over to www.myrehat.com. Whether you are looking for accommodation, local experiences or expert travel advice, MyRehat offers a wealth of resources to enhance your journey, ensuring a memorable and stress-free trip.