The SimOptions Guide
Travel guides and connectivity tips for 200+ destinations.
All guides (442)
Updated October 27, 2026What is Wi-Fi Assist on iPhone? Where to Find It and When to Turn It OffWi-Fi Assist is an iPhone setting that uses cellular data when your Wi-Fi connection is weak or slow, so pages, maps and video calls keep working. On iOS 26 and…Updated October 28, 2026Travel TipsWhat Are the Rules for Traveling Abroad with Prescription Medication?Yes, you can usually travel abroad with prescription medication for your own use. But the rules for traveling internationally with prescription medication depend on the…Updated November 9, 2026Travel TipsWhat Is Shoulder Season? When It Is and Why It's Worth ItShoulder season is the stretch between a destination's busy peak season and its quiet low season. Think spring and autumn in much of Europe. Crowds are smaller, prices…Updated November 10, 2026Travel TipsGetting Sick Abroad: What To Do, Who To Call And What's CoveredIf you get sick abroad, start with the basics: decide whether it's an emergency, call the local emergency number if it is, and tell your travel insurer early. In the…Updated October 27, 2026Phone Tips & SecurityHow to Stop and Block Spam Calls on iPhone and AndroidTired of spam calls? You can stop most of them in a few minutes. Turn on your phone's built-in spam filter, block the numbers that keep calling, and switch on your…Updated November 9, 2026Phone Tips & SecurityEmergency Calls on iPhone: SOS, Emergency Contacts and Medical IDAn emergency call on iPhone works even when your phone is locked. Tap Emergency on the passcode screen to dial 911, 112 or your local number without unlocking. Or use…Updated November 9, 2026Phone Tips & SecurityIs Hotel Wi-Fi Safe? What Can Go Wrong and How to Protect YourselfHotel Wi-Fi is mostly fine for casual browsing, but it is a shared public network, so treat it that way. Most websites and apps now encrypt your data, which makes…Updated November 9, 2026Mobile Data & RoamingWhat Determines the Speed at Which Data Travels?The speed of your data depends on four main things: the type of connection (fibre, cable, 4G, 5G), the bandwidth you have, the delay (latency) on the route, and how…Updated November 9, 2026How to Share Your Location on iPhone (Find My and Messages)To share your location on iPhone, open the Find My app, tap Me and turn on Share My Location. Then tap People, tap the + button, choose Share My Location, enter a name…Updated October 27, 2026Phone Tips & SecurityDoes Apple Pay Work Internationally? What to Know Before You TravelYes, Apple Pay works internationally. You can use it abroad with your iPhone or Apple Watch wherever the shop, restaurant or transit gate takes contactless payments.…Updated November 9, 2026Travel TipsFlight Delay Compensation: How Much You Can Get and How to ClaimCan you get compensation for a delayed flight? Often, yes. If your flight is covered by EU or UK rules and you reach your final destination 3 hours or more late for a…Updated November 9, 2026eSIM Setup & FixesSOS Only on iPhone: What It Means and How to Fix ItSeeing "SOS" or "SOS only" at the top of your iPhone screen? It means your iPhone isn't connected to your carrier's network, but you can still make emergency calls…