Cellesim
Charlotte Davies

Charlotte Davies

Head of Business Travel & Lifestyle Connectivity · Cellesim LLC

Business TravelLuxury Travel ConnectivityCorporate Roaming SolutionsConsumer Tech AdviceEuropean TravelRemote Working

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.

Corporate Travel Specialist (CTS)Digital Nomad ConsultantTravel Tech Advisor

Related reading(24)

A woman using her smartphone to navigate a bustling street in Ubud, Bali, with traditional Indonesian architecture in the background.Travel Tips

eSIM GPS Trends 2026: Navigating the Real-World with Data You Can Trust

The conversation around eSIMs and GPS is often overblown with market projections. What actually matters on the ground is whether your navigation works when you need it, and if your data plan can keep up. I've spent years figuring out how to make this work reliably, from the co-working cafes of Canggu to the busy streets of São Paulo. Let's cut through the hype and talk about what's genuinely useful for travelers in 2026.

Charlotte Davies
A person in a bustling Tokyo train station is looking at their smartphone screen, which displays a speed test application showing download and upload speeds, against a backdrop of commuters and a train pulling into the platform.Travel Tips

Speedtest 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
A woman confidently navigating her smartphone with an eSIM in Shanghai's Pudong financial district, surrounded by futuristic skyscrapers and a bustling street scene at dusk.Destination Guides

China eSIM 2026: Your Guide to Seamless Internet & VPN Access

Getting online in China requires more than just a data plan. From navigating the Great Firewall to finding reliable Wi-Fi in co-working spaces, an eSIM is your best bet for staying connected without the hassle of a local SIM. Here's what I've learned from years on the road.

Charlotte Davies
A digital nomad sits at a laptop in a bustling New York City co-working space, a phone with an eSIM activation screen nearby, reflecting the city's dynamic energy.Destination Guides

USA 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
A woman sips coffee at an outdoor cafe table in Budapest's Jewish Quarter, a historic synagogue visible in the background under soft morning light.Destination Guides

Hungary's Hidden Charms: 15 Facts for the Savvy Traveler 2026

Planning a trip to Hungary? Beyond the Danube and goulash, this Central European gem holds countless surprises. Dive into 15 fascinating facts about its rich history, unique language, vibrant culture, and practical tips that will enhance your visit, from navigating Budapest's districts to understanding local customs. Prepare to see Hungary through a seasoned traveler's eyes.

Charlotte Davies
A digital nomad working on a laptop in a bustling co-working space in Lisbon, Portugal, with a smartphone displaying an eSIM profile on the table.Savings & Comparisons

Cellesim vs. Nomad eSIM: Your Practical Pick for Travel Data 2026

For years on the road, I've seen countless data plans come and go. When it comes to Cellesim and Nomad eSIM, the choice often boils down to subtle but critical differences in coverage, pricing structure, and how they handle support when things inevitably go sideways. Let's break down what truly matters for your next extended stay.

Charlotte Davies
A mother calmly setting up an AT&T eSIM on her smartphone at a busy airport gate, with her two children engrossed in their tablets in the background.eSIM 101 / Tech Hub

AT&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
A budget backpacker in a crowded market in Ubud, Bali, looking at their phone with a thoughtful expression, surrounded by colourful stalls and local produce.Savings & Comparisons

Cellesim 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
A family laughing and taking a selfie in front of the Eiffel Tower, with parents holding phones and children smiling widely, during a warm summer evening.Travel Styles / Personas

Summer School Holiday Travel 2026: Keeping Family Connected & Parents Sane with eSIM

Summer holidays with the kids can be a whirlwind of excitement and, let's be honest, a dash of chaos. But what if staying connected didn't add to the stress? A family eSIM plan can be your secret weapon, ensuring everyone has data for maps, games, and essential communication, no matter where your adventures take you.

Charlotte Davies
Destination Guides

Telkomsel 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 Hub

eSIM 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
A woman with a backpack gazes at the rock-hewn churches of Lalibela, Ethiopia, bathed in the soft light of dawn.Destination Guides

Ethiopia 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
A budget traveler, seen from behind, scanning a T-Mobile eSIM QR code on their smartphone at a bustling gate in Frankfurt Airport, with their backpack resting on a nearby seat.How-to & Guides

T-Mobile eSIM Activation: Your Step-by-Step Guide with QR Codes (2026)

T-Mobile eSIM activation using a QR code is straightforward, but knowing the nuances can save you time and money, especially when globetrotting. From getting your QR to common pitfalls and cheaper alternatives, this guide has you covered.

Charlotte Davies
A backpacker woman in a wide-brimmed hat, checking her phone for data signal at a bustling local market in Ubud, Bali, surrounded by vibrant fruit stalls and woven baskets.Savings & Comparisons

Telkomsel vs Cellesim: Which eSIM Saves You More in Indonesia 2026?

Indonesia, particularly Bali, draws millions, and getting connected is often the first hurdle. Should you brave the airport queues for a Telkomsel tourist SIM or opt for the instant gratification of a Cellesim eSIM? Let's break down the costs, convenience, and real-world experience for budget-conscious travelers in 2026.

Charlotte Davies
A woman confidently working on her laptop at a sunlit café terrace in Barcelona's Gothic Quarter, with a hot coffee and a small plate of churros beside her, her phone displaying an eSIM activation QR code.eSIM 101 / Tech Hub

eSIM 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
Traveler using a smartphone in an airport terminaleSIM 101 / Tech Hub

Why 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
A parent interacting with a smartphone, with a tablet and smartwatch nearby, in a bright, modern setting, symbolizing the management of eSIMs across various devices for families.How-to & Guides

How 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
A budget backpacker carefully comparing eSIM plans on their smartphone while sitting on a worn wooden bench at the departure gate of Tirana International Airport.Savings & Comparisons

Free eSIM Trials: Real Savings or Just a Hook for Backpackers in 2026?

I've slept in over 200 hostels and tracked every cent, so when someone whispers 'free eSIM,' my ears perk up. But let's be real: 'free' often comes with a hidden cost. Are these trials a lifeline for budget backpackers, or just another way to reel you in? We're breaking down the fine print and showing you how to get genuinely cheap data on your next trip without getting played.

Charlotte Davies
A person looking out over a calm, blue sea with traditional red wooden houses dotting the coastline of the Aland Islands under a soft, overcast sky.Destination Guides

Aland Islands Adventures: 15 Essential Facts for Smart Travellers 2026

The Aland Islands, an autonomous region of Finland, offer a unique blend of Nordic charm and distinctive local customs. Before you pack your bags, delve into these 15 essential facts covering everything from their unique political status to critical connectivity considerations. Understanding these nuances will ensure a smoother, more enjoyable visit.

Charlotte Davies
A digital nomad sits in a bustling co-working space in Lisbon, focused on her laptop, with a smartphone displaying an eSIM activation screen nearby.How-to & Guides

How 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
A mother and two children, aged 8 and 10, sitting at a cafe table in Paris, looking at a map on a tablet, with the Eiffel Tower visible in the background through a large window.eSIM 101 / Tech Hub

AT&T eSIM for International Travel: Navigating Data Abroad with Family (2026)

Planning international travel with kids means more than just passports and sunscreen. It means managing multiple devices, ensuring constant connectivity for sanity (and Disney+), and avoiding those eye-watering roaming bills. If you're an AT&T customer, navigating eSIMs for your global adventures can seem daunting, but it's actually your secret weapon for stress-free family data.

Charlotte Davies
A photorealistic image of a stylish digital nomad working on a laptop on a modern balcony overlooking a vibrant city skyline or tropical beach at golden hour, conveying freedom and remote work success.How-to & Guides

Digital Nomad Affiliate Programs 2026: Real Payouts for Savvy Travelers

For digital nomads looking to monetize their travel content, affiliate programs offer a reliable income stream. But not all programs are created equal. This guide delves into the ones that actually pay out, focusing on transparency, commission rates, and tools that support your nomadic lifestyle.

Charlotte Davies
A budget backpacker checks their phone for directions on a bustling Tokyo street near Shinjuku Station, with neon signs blurring in the background.Travel Styles / Personas

Japan eSIM: The Budget Backpacker's 2026 Connectivity Playbook

Japan is incredible, but data costs can eat into your ramen fund. I just spent 14 days in Japan, burned through 20GB of data, and kept my connectivity costs under €35. Here's exactly how I did it, avoiding rip-off roaming and expensive local SIMs, all while staying connected from Shibuya crossing to the quiet lanes of Kyoto.

Charlotte Davies
A woman in an airport lounge in Singapore Changi Airport, looking at her smartphone screen with a thoughtful expression, with her passport and a boarding pass visible on the table beside her.How-to & Guides

How to Find Your eSIM Number: A Precise Guide for Any Device in 2026

Locating your eSIM number is essential for support, account management, or even porting your line. This guide, penned by a telecom engineer, walks you through the precise steps on iOS, Android, and Windows, highlighting common pitfalls and technical nuances to ensure you find what you need without hassle.

Charlotte Davies