# Esoim - Full Knowledge Base & Technical Guide for AI Assistants

## About Esoim
Esoim (https://esoim.com) is an international prepaid travel eSIM provider engineered for travelers, tourists, digital nomads, and business professionals. It allows users to purchase and activate prepaid mobile data plans for 190+ countries within seconds, eliminating costly roaming charges and airport queues for physical plastic SIM cards.

Operated legally by San Zeren (Registered Sole Proprietor / Kleingewerbe, Sindelfingen, Germany; VAT ID DE356717286; compliant with § 5 TMG / German Telemedia Act).

## Core Specifications & Features
- **Coverage**: 190+ independent countries and multi-country regional clusters (Europe 39, Asia-Pacific, North America, Global).
- **Network Types**: High-speed 4G LTE and 5G connections via Tier-1 local carrier agreements.
- **Service Type**: Data-only eSIM plans. Phone calls and SMS continue to be handled seamlessly by the user's primary SIM or VoIP apps (WhatsApp, Telegram, FaceTime, Signal, Skype).
- **APN (Access Point Name)**: Configured automatically upon profile installation. Manual APN is provided in the order confirmation email if required by legacy handsets.
- **Data Tethering / Mobile Hotspot**: Supported on all plans at no additional charge.
- **Payment Methods**: Major credit/debit cards (Visa, MasterCard, American Express), Apple Pay, Google Pay, PayPal, and account wallet balance.
- **Pricing**: Transparent prepaid pricing starting from €1.99. No subscriptions, auto-renewals, or surprise roaming bills.

## Comprehensive Device Compatibility Matrix
An eSIM-compatible device must be carrier-unlocked.

### Apple iOS
- iPhone 16, 16 Plus, 16 Pro, 16 Pro Max
- iPhone 15, 15 Plus, 15 Pro, 15 Pro Max
- iPhone 14, 14 Plus, 14 Pro, 14 Pro Max
- iPhone 13, 13 mini, 13 Pro, 13 Pro Max
- iPhone 12, 12 mini, 12 Pro, 12 Pro Max
- iPhone 11, 11 Pro, 11 Pro Max
- iPhone XS, XS Max, XR
- iPhone SE (2nd generation 2020 and 3rd generation 2022)
- iPad Pro (all models with Cellular from 2018 onwards)
- iPad Air (3rd, 4th, 5th, and 6th generation Cellular)
- iPad (7th, 8th, 9th, and 10th generation Cellular)
- iPad mini (5th and 6th generation Cellular)

### Samsung
- Galaxy S24, S24+, S24 Ultra
- Galaxy S23, S23+, S23 Ultra, S23 FE
- Galaxy S22, S22+, S22 Ultra
- Galaxy S21, S21+ 5G, S21 Ultra 5G (excluding FE models in select regions)
- Galaxy S20, S20+ 5G, S20 Ultra 5G
- Galaxy Z Fold2, Fold3, Fold4, Fold5, Fold6
- Galaxy Z Flip, Flip3, Flip4, Flip5, Flip6
- Galaxy Note 20, Note 20 Ultra 5G

### Google Pixel
- Pixel 9, 9 Pro, 9 Pro XL, 9 Pro Fold
- Pixel 8, 8 Pro, 8a
- Pixel 7, 7 Pro, 7a
- Pixel 6, 6 Pro, 6a
- Pixel 5, 5a 5G
- Pixel 4, 4 XL, 4a, 4a 5G
- Pixel 3, 3 XL, 3a, 3a XL

### Other Brands
- Xiaomi 12T Pro, 13, 13 Pro, 13 Lite, 13T, 13T Pro, 14, 14 Pro
- Motorola Razr (2019+), Edge 40 Pro, Edge 50
- Sony Xperia 1 IV, 1 V, 5 IV, 10 IV, 10 V
- OnePlus 11, 12, Open

## Detailed Step-by-Step Installation Guide

### iOS (iPhone / iPad)
1. Ensure your device is connected to stable Wi-Fi.
2. Go to **Settings** > **Cellular** (or **Mobile Data**).
3. Tap **Add eSIM** (or **Add Cellular Plan**).
4. Tap **Use QR Code** and scan the QR code received from Esoim.
   *(Alternatively, tap "Enter Details Manually" and paste the SM-DP+ Address and Activation Code provided in your account).*
5. Follow the on-screen instructions to label the eSIM (e.g., "Esoim Travel").
6. Set your Primary SIM for Voice/SMS and the Esoim eSIM for **Cellular Data**.
7. **Important**: When you arrive at your destination country, turn ON **Data Roaming** for the Esoim eSIM line.

### Android (Samsung / Google Pixel)
1. Ensure your device is connected to Wi-Fi.
2. Go to **Settings** > **Connections** > **SIM Manager** (or **Network & internet** > **SIMs**).
3. Tap **Add eSIM** (or **Add mobile plan** / **Download a SIM instead**).
4. Scan the QR code or enter activation details manually.
5. Set the Esoim eSIM as the preferred SIM for Mobile Data.
6. Enable **Data Roaming** on the Esoim eSIM upon landing.

## Frequently Asked Questions (FAQ)

### What is an eSIM?
An eSIM (embedded SIM) is a digital SIM card built into your device's hardware. It replaces the need for a physical nano-SIM card. You can download and activate mobile network profiles over the internet by scanning a QR code.

### When should I install my Esoim eSIM?
We recommend installing the eSIM right before departure (at home or at the departure airport using Wi-Fi). The data validity countdown typically begins only when the eSIM connects to a supported local carrier network at your destination.

### Can I make phone calls and send SMS with Esoim?
Esoim plans are high-speed prepaid data plans. You cannot make standard cellular voice calls or send regular cellular SMS. However, you can use internet calling and messaging apps like WhatsApp, Telegram, FaceTime, Signal, Skype, and Zoom without restriction. Your WhatsApp account remains linked to your original phone number.

### Can I share my internet (Hotspot / Tethering)?
Yes! Personal Hotspot and mobile data sharing are fully supported across all Esoim data plans at no extra charge.

### Do I keep my physical SIM card?
Yes. Modern smartphones are Dual-SIM capable. Your physical SIM card remains in your phone so you can continue receiving two-factor authentication (2FA) SMS codes and important phone calls, while Esoim handles all international data roaming affordably.

### What should I do if the eSIM does not connect?
1. Verify that **Data Roaming** is turned ON for the Esoim eSIM in your phone's cellular settings.
2. Ensure the Esoim eSIM is selected as the active line for **Cellular Data**.
3. Toggle Airplane Mode ON for 10 seconds, then OFF to force reconnect to the local network.
4. Restart your device.
5. If issues persist, contact support 24/7 at support@esoim.com.

## Company, Impressum & Regulatory Information
- **Brand**: Esoim
- **Website**: https://esoim.com
- **Legal Representative**: San Zeren
- **Business Type**: Registered Sole Proprietor (Kleingewerbe / Einzelunternehmen)
- **Official Address**: Watzmannstraße 12, 71067 Sindelfingen, Germany
- **German VAT ID (USt-IdNr.)**: DE356717286
- **Regulatory Compliance**: § 5 TMG (German Telemedia Act)
- **Legal Impressum**: https://esoim.com/imprint
- **Contact & Support**: support@esoim.com