Developed by cybersecurity and privacy leader Nord Security (the creators of NordVPN and NordPass) and founded in 2024 by Tom Okman and Eimantas Sabaliauskas, Saily is a next-generation global travel eSIM service engineered to eliminate expensive international mobile roaming charges. Providing seamless, high-speed 4G, LTE, and 5G cellular data connectivity across more than 160 countries worldwide, Saily allows international travellers to stay connected abroad without swapping physical SIM cards, paying roaming fees, or hunting for risky public Wi-Fi networks.

Whether travelling across Europe, visiting the United States, or embarking on multi-country Asian tours, activating your travel data with a verified Saily Promo Code unlocks up to 15% off regional and global data plans. Our mobile telecom audits at BudgetFitter confirmed that Saily uses a single master eSIM profile, allowing users to add data packages for new destinations directly in the mobile app without repeatedly scanning new QR codes.

Global 160+ Country Coverage, 1-Click eSIM Setup & Single Master Profile

Saily delivers frictionless international connectivity designed for frequent travellers:

• Extensive Global 160+ Country Coverage: Connect to premium tier-1 carrier networks in the UK, Europe, USA, Japan, Thailand, UAE, and beyond with local carrier network speeds.
• Single Master eSIM Profile: Install the Saily eSIM profile on your phone once; when travelling to a new country, simply purchase a data package in the app and it activates automatically on your existing eSIM profile.
• Nord Security Privacy & Threat Protection: Engineered with cybersecurity DNA, Saily protects your mobile data traffic without collecting unnecessary personal browsing logs.
• Full Mobile Hotspot & Tethering Support: Share your high-speed travel data connection with laptops, tablets, or travel companions via mobile hotspot at zero extra cost.
• Flexible Data Package Tiers: Choose from 1GB (7 days), 3GB (30 days), 5GB (30 days), 10GB (30 days), or 20GB (30 days) to match your exact trip length and data budget.

Saily vs Traditional UK Mobile Carrier Roaming Passes (EE, Vodafone, O2)

Compare the cost savings, speed, and setup convenience of Saily against traditional carrier roaming:

Consumer Watchdog Guide: Carrier Unlocking, Data-Only Voice and Validity Triggers

Ensure seamless mobile connectivity abroad with these practical pointers from BudgetFitter:

• Confirm Your Smartphone is Carrier-Unlocked: To install any digital eSIM, your iPhone, Google Pixel, or Samsung Galaxy must be carrier-unlocked from UK network contracts; check your device settings under ‘Carrier Lock’ before purchasing.
• Validity Period Starts on First Network Connection: Saily data package validity (e.g. 7 days or 30 days) begins when your device first pings a supported cellular network at your destination, NOT when purchased; you can safely purchase and install your plan days before flying.
• Understand Data-Only Functionality (Use WhatsApp/FaceTime): Saily plans provide high-speed mobile internet but do not include traditional cellular voice numbers; use WhatsApp, FaceTime, Skype, or Telegram for crystal-clear voice and video calls.
• Keep Your Primary UK SIM Active for Banking SMS 2FA: Keep your domestic physical SIM active for incoming two-factor authentication (2FA) bank security codes while routing all mobile data through Saily.
• Enable Data Roaming on the Saily eSIM Line: When landing at your destination airport, switch mobile data to your Saily eSIM and turn on ‘Data Roaming’ in cellular settings to establish an instant connection.

How to Maximise Value on Saily

Experienced international travellers use these techniques to optimize travel data usage:

• Download Offline Maps on Google Maps Before Departure: Download city map areas over home Wi-Fi before your trip to navigate with zero data consumption.
• Choose 10GB or 20GB Packages for Lower Per-Gigabyte Costs: Larger data packages offer substantially lower per-gigabyte rates (often under £1.80/GB) compared to single 1GB top-ups.
• Turn Off Background App Refresh for Heavy Streaming Apps: Restrict social video apps from auto-refreshing in the background to prevent accidental data drain while sightseeing.

Step-by-Step Guide: Installing Your Saily Travel eSIM

Get online abroad in four simple steps:

1. Choose Your Destination: Open the official Saily website or app and select your travel country and data package size.
2. Apply Promo Code: Enter your verified promotional voucher code at checkout to claim your discount.
3. Install eSIM Profile: Follow the 1-click in-app installer or scan the provided QR code to add the eSIM profile to your smartphone.
4. Activate Upon Arrival: When landing abroad, turn on the Saily eSIM line in cellular settings and enable Data Roaming to connect instantly.

Complementary Cross-Border Banking, Travel & Transit Perks

To discover more savings across international roaming plans, digital eSIMs, and mobile travel connectivity, explore BudgetFitter’s canonical Global eSIMs & Roaming Hub. Overseas holidaymakers and digital nomads connecting with Saily can also optimize their journey with verified partner perks, including Currensea for zero-fee international debit card spending linked to existing UK bank accounts, Cedar Tree Travel Insurance for comprehensive global holiday and winter sports protection, BookBeat for audiobooks and relaxing leisure listening on long flights and train journeys, The Gym Group for flexible 24/7 UK gym access with zero contract lock-ins, Seatfrog for first-class train ticket upgrades on UK airport rail corridors, Q-Park for secure pre-booked parking at UK airport hubs, Capital on Tap for 1% cashback commercial credit cards on travel expenses, and MindManager for visual trip itinerary and packing roadmaps.