Charlotte Davies
Head of Business Travel & Lifestyle Connectivity · Cellesim LLC
Based in London, Charlotte Davies is a recognized expert in business travel connectivity and digital lifestyle integration. With over 15 years of experience in corporate travel management for global firms in the City of London, she now advises Cellesim users on seamless connectivity solutions for professional and leisure trips. Charlotte specializes in simplifying complex roaming options for business travelers and luxury vacationers seeking hassle-free internet access.
Related reading(24)
Travel Styles / PersonasO2 Roaming Zones and Charges for GB Travelers in 2026
Planning international travel from Great Britain? This guide details O2 UK's roaming zones and associated charges, helping you understand your options for staying connected abroad in 2026. Discover how O2's inclusive zones compare to using a local SIM or an eSIM for data.
Charlotte Davies
Travel TipsSouth Korea 4G eSIM Daily Limits: What to Know Before You Go 2026
Heading to Seoul for half-term? South Korea's fast internet is legendary, but understanding the nuances of 4G eSIM daily data limits is crucial to avoid unexpected slowdowns. Don't let a throttled connection disrupt your trip, whether you're navigating Gangnam or streaming K-dramas on the subway.
Charlotte Davies
Travel TipsWhat's a SIM Card: Your Budget Backpacker's Data Cheat Sheet for 2026
Forget the jargon, let's talk real money. A SIM card is your phone's passport to local mobile networks. But in 2026, is it still the cheapest option, or are you better off with an eSIM? As someone who's crossed borders with both, I'll break down what you need to know to avoid spending a fortune.
Charlotte Davies
Destination GuidesVodacom Travel SIM in South Africa: Kruger Coverage, RICA and Loadshedding
Vodacom is the network to have in Kruger, and self-RICA now skips the counter. Neither fixes the one problem unique to South Africa: when the power goes, the towers go with it.
Charlotte Davies
Destination GuidesSoftBank eSIM in Japan: The Network You Mostly Cannot Buy as a Tourist
Japan requires a residence card for a normal mobile contract, so tourists get a legacy data-only product at 1,650 yen for 500 MB. Here is what actually works instead.
Charlotte Davies
Destination GuidesNcell eSIM in Nepal: Real Trekking Coverage and What Works Above Namche
Ncell is cheap and the stronger trekking network, but above Dingboche no SIM works. The thing that actually gets you online is a Wi-Fi card bought in Namche.
Charlotte Davies
Destination GuidesSwisscom eSIM in Switzerland: Prices, Passport Rules and the EU Roaming Trap
Switzerland is not in the EU, so your EU roaming allowance stops at the border and many "Europe" eSIM plans exclude it. Swisscom prices, passport rules and border traps explained.
Charlotte Davies
Destination GuidesThree UK eSIM for Visitors: When a Local SIM Beats a Travel eSIM
The UK asks visitors for no paperwork and Three sells 60 GB for GBP 10. That makes the case for a travel eSIM narrower here than anywhere else. Here is exactly where each one wins.
Charlotte Davies
Destination GuidesMTN eSIM in Africa: Why One SIM Does Not Cover the Continent
An MTN SIM from Lagos does not work in Accra, and the document Johannesburg wants is not the one Ghana asks for. Registration rules and prices country by country.
Charlotte Davies
Destination GuidesSafaricom eSIM in Kenya: M-Pesa, Passport Rules and Real Safari Coverage
Safaricom has Kenya’s best network and M-Pesa, but airport SIMs cost 10x the town price and much of the Mara has no signal at all. Here is how to size connectivity for a safari trip.
Charlotte Davies
Destination GuidesSingtel hi! Tourist eSIM: Singapore Plans and Passport Rules
Check validity, passport registration and the services actually enabled before choosing a Singtel tourist plan or a Singapore travel data eSIM.
Charlotte Davies
Destination GuidesGlobe eSIM for Tourists in the Philippines: What the 30-Day Rule Means
Globe sells generous tourist data bundles, but a tourist-registered Philippine line switches off after 30 days by law. Here is what registration takes and when a travel eSIM is simpler.
Charlotte Davies
Travel TipsTurkcell eSIM for Tourists: Navigating Turkey's Mobile Data in 2026
Turkey is a country that always pulls you back, whether it's the buzzing Grand Bazaar in Eminönü or the ancient ruins of Ephesus. But staying connected shouldn't be another item on your travel checklist. Let's talk about Turkcell eSIMs for tourists and how to keep your phone working from the Bosphorus to Bodrum.
Charlotte Davies
Travel TipsSpeedtest Your eSIM: Real-World Data Speeds & What To Expect Abroad in 2026
Wondering how fast your eSIM will actually be when you land? We dive deep into the real-world performance of travel eSIMs, examining typical speeds for 4G LTE and 5G NR, the impact of local infrastructure, and common gotchas like network prioritization and APN settings. Get the full picture before you buy.
Charlotte Davies
Destination GuidesUSA eSIM: Your Essential Guide to Affordable Data for American Travel 2026
Forget the usual US data headaches. Getting online in America, whether you're a tourist or a long-term digital nomad, doesn't have to break the bank. An eSIM is often your best bet for affordable, reliable connectivity, cutting through the confusing carrier landscape to keep you connected from Brooklyn to Burbank.
Charlotte Davies
eSIM 101 / Tech HubAT&T eSIM Activation: Seamless Setup for Family Travel Abroad 2026
Juggling passports, keeping track of small humans, and making sure everyone's device is connected without breaking the bank is the secret sauce to a happy family trip. This guide walks you through activating your AT&T eSIM for international travel, ensuring your devices, and more importantly, the kids' iPads, stay online.
Charlotte Davies
Savings & ComparisonsCellesim vs. Telkomsel eSIM 2026: Indonesia Data, No Rip-Offs
Heading to Indonesia? Don't get caught out by dodgy Wi-Fi or overpriced local SIMs. This frank comparison breaks down Cellesim versus Telkomsel eSIMs, showing you how to get reliable data without burning a hole in your rupiah budget. We're talking real costs, real coverage, and zero tourist traps.
Charlotte Davies
Destination GuidesTelkomsel eSIM 2026: Navigating Indonesia's Data Scene on a Budget
Indonesia's connectivity can be a maze, especially with Telkomsel being the dominant player. This guide cuts through the noise, detailing how to get Telkomsel eSIM, what plans make sense for tourists, and how it stacks up against other options for affordable data across the archipelago.
Charlotte Davies
eSIM 101 / Tech HubeSIM for PCs & Laptops: Getting Online Anywhere on a Budget in 2026
I've clocked over 200 hostels, and every euro counts. My laptop, a trusty Lenovo ThinkPad X1 Carbon, is my office on the road. For years, tethering was the only option, draining my phone battery and my patience. Now, with eSIMs built into more PCs, things are changing. This is how I keep my laptop connected, usually for less than €5 a day, even in the remotest corners.
Charlotte Davies
Destination GuidesEthiopia Travel: 15 Facts to Know Before You Go (2026)
Ethiopia isn't your average backpacker destination, and that's precisely why you should go. From ancient history to unique coffee rituals, this guide dives into 15 essential facts, including how I managed my data budget without breaking the bank.
Charlotte Davies
eSIM 101 / Tech HubeSIM for PC: Staying Connected on Your Laptop Abroad in 2026
For business travelers and digital nomads, ensuring consistent internet access on a laptop while abroad is crucial. This article delves into how eSIM technology is transforming PC connectivity, offering a reliable alternative to public Wi-Fi or tethering, complete with device compatibility, technical considerations, and practical activation steps for 2026.
Charlotte Davies
eSIM 101 / Tech HubWhy We Bundled a Free VPN Into Every Cellesim eSIM
Every active Cellesim eSIM now includes a free built-in VPN across 10 global locations. Here is why we did it, and how to turn it on.
Charlotte Davies
How-to & GuidesHow to Find Your eSIM Number: A Parent's Essential Guide for All Devices (2026)
Knowing how to find your eSIM number is a crucial step for seamless family travel, especially when juggling multiple devices for kids. This guide cuts through the tech jargon, providing clear, step-by-step instructions for iPhones and Androids, ensuring you're always ready for activation or a quick troubleshooting fix.
Charlotte Davies
How-to & GuidesHow Does an eSIM Work? Your 2026 Guide to Digital Mobile Data
Ever wondered how those tiny digital SIMs actually work? After four years on the road, I've seen enough physical SIMs die on me in remote corners of the world. This guide cuts through the tech jargon to explain exactly how an eSIM keeps you connected, without the usual travel data headaches. It's simpler than you think.
Charlotte Davies