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What is the best and most cost efficient way to use my Indonesian phone while traveling to the UK for calling and for data?
Okay, here’s a breakdown of the best and most cost-efficient ways to use your Indonesian phone in the UK for calls and data:
Understanding the Options
International Roaming (from your Indonesian provider): This is usually the most convenient but often the most expensive option. Your existing Indonesian SIM will work in the UK, but you’ll be charged very high rates for calls, texts, and data. Check with your Indonesian provider (Telkomsel, Indosat Ooredoo, XL Axiata, etc.) before you travel to understand their roaming charges for the UK.
UK SIM Card (Local SIM): This is generally the most cost-effective. You buy a SIM card from a UK mobile provider, insert it into your phone, and get local UK rates for calls, texts, and data.
eSIM (if your phone supports it): An eSIM is a digital SIM card that you can download to your phone. This can be a convenient way to get a local UK plan without physically swapping SIMs.
Wi-Fi + VoIP Apps: Rely heavily on Wi-Fi for data and use apps like WhatsApp, Skype, or Viber for calls and messaging. This can be very cheap if you have reliable Wi-Fi access.
Recommendations
UK SIM Card (Prepaid):
- Why: Best balance of cost and convenience. You get local rates, and you don’t have to worry about running up a huge roaming bill.
- How:
- Purchase: You can buy a prepaid (pay-as-you-go) SIM card at the airport upon arrival in the UK, at convenience stores (like Tesco Express or Sainsbury’s Local), mobile phone shops (like Vodafone, EE, or O2), or online (e.g., from Amazon UK) before you travel.
- Providers: Popular providers include:
- Giffgaff: Often recommended for good value and flexible plans. Operates on the O2 network.
- EE: Good coverage, can be slightly more expensive.
- Vodafone: Also good coverage, competitive pricing.
- Three: Known for generous data allowances.
- Plans: Look for a prepaid plan that includes a bundle of data, calls, and texts. Many providers offer monthly bundles that are very affordable.
- Considerations:
- You’ll need to unlock your Indonesian phone before you travel to ensure it can accept a UK SIM card.
- You’ll get a new UK phone number.
eSIM (if your phone is compatible):
Wi-Fi + VoIP Apps:
International Roaming (Use as a Last Resort):
Why: Most convenient (no SIM swap), but potentially very expensive.
How: Contact your Indonesian mobile provider before you travel to activate roaming and understand the rates.
Considerations:
- Can be significantly more expensive than a local SIM or eSIM.
- Data roaming charges can add up very quickly.
Steps to Take Before You Travel
- Unlock Your Phone: Make sure your Indonesian phone is unlocked so it can accept SIM cards from other providers. Contact your Indonesian provider to unlock it.
- Check Roaming Rates: If you’re considering roaming, contact your Indonesian provider to find out their rates for calls, texts, and data in the UK.
- Research UK SIM/eSIM Options: Compare the prices and plans of different UK mobile providers to find the best deal for your needs.
- Download VoIP Apps: If you plan to rely on Wi-Fi, download and set up apps like WhatsApp, Skype, or Viber.
In Summary
For most travelers, a UK prepaid SIM card or eSIM will be the most cost-effective and convenient way to use your phone in the UK. Avoid relying on international roaming from your Indonesian provider unless absolutely necessary, as it can be very expensive. If you can find reliable Wi-Fi, using VoIP apps is the cheapest option, but it’s not always practical.
