高速5G、本当に無制限
無制限プランでは、利用可能なエリアで高速5Gをご利用いただけます。フェアユースポリシー適用時でも、1080pのHD動画をスムーズに再生可能。利用規約も事前に明確に開示しています。
柔軟なプラン、スピーディーな設定、そして充実のカスタマーサポートで、グレナダのどこにいても快適につながります。
無制限プランでは、利用可能なエリアで高速5Gをご利用いただけます。フェアユースポリシー適用時でも、1080pのHD動画をスムーズに再生可能。利用規約も事前に明確に開示しています。
旅行前も旅行中も、WhatsAppやメールで本人のスタッフが対応します。チャットボットや定型文の使い回しはありません。
パスポート提示、面倒な会員登録、物理SIMの差し替えは一切不要。プライバシーを最優先にした設計で、わずか数分で開通します。
eSIMはメールおよびByteSIMアプリへすぐにお届け。QRコードをスキャンしてインストールすれば、現地到着後すぐに接続できます。
最適なグレナダのeSIMを選び、出発前にインストール。現地に到着したら接続するだけで、その後の管理もすべてByteSIMアプリで完結します(通常、約3分で完了します)。
安定したWi-Fi環境で、QRコードまたはByteSIMアプリを使ってインストールしてください。事前に設定しても通常プランの利用期間は開始されません。
ほとんどのプランは現地到着時に自動で開通します。一部のプランは、指定した日付、またはアプリ内での操作により開始されます。
データ使用量の確認や追加チャージ、24時間年中無休のByteSIMサポートへの問い合わせが可能です。
ローミング、現地SIMカード、一般的なトラベルeSIMと比較してByteSIMがどのように優れているかをご覧ください。
| 機能 | ByteSIM 柔軟な旅行のために構築 | ローミング | ローカルSIM | 標準的なeSIM |
|---|---|---|---|---|
| 無制限データ | 滑らかな1080p HD* | No | No | FUP 256kbps~1Mbps |
| 複数のネットワーク 利用可能な場所でより良いカバレッジ | ほとんどの計画 | 変動する | No | 変動する |
| Free Switch & Swap Network and device flexibility | ほとんどの計画 | No | No | No |
| 通話&テキスト データ通信だけでなく、通話とテキストも | ボイスプラン | Yes | Yes | Usually no |
| 即時配送 メールとアプリへのアクセス | Yes | N/A | No; store or kiosk required | Usually yes |
| 年中無休の人によるサポート スクリプトではなく、実際の人々 | Yes | No | No | 変動する |
| 180日間返金保証 返金ポリシーが適用されます | Yes | No | No | No |
一般的な比較のみ。 *真に無制限のプランでは、スムーズな1080p HDストリーミングがサポートされます。速度ポリシーはプランによって異なり、プラン詳細に記載されています。 •通話、テキストメッセージ、複数ネットワーク、Switch & Swap、ホットスポット、番号機能、および返金は、プラン、宛先、ポリシーによって異なります。
Everything to know before you travel: compatibility, setup, activation, unlimited data, 5G, calls, hotspot, app management and refunds.
A グレナダ eSIM is a prepaid digital SIM that gives an unlocked eSIM-compatible phone mobile data while traveling in グレナダ, without using a physical SIM card. After purchase, you install the eSIM on your device, choose it as your mobile data line, and connect to a supported local network when you arrive.
Your phone must support eSIM and be carrier-unlocked to use a ByteSIM グレナダ eSIM. eSIM support can vary by phone model, carrier lock status, and the region where the device was sold. Please check the ByteSIM compatible device list before you buy.
ByteSIM eSIM delivery is digital and usually immediate after payment. Your eSIM QR code and setup details are sent by email and can also be accessed in the ByteSIM App, usually within a few minutes. No physical SIM card is shipped.
Install your グレナダ eSIM before your trip while connected to stable Wi-Fi, then turn it on when you are ready to use mobile data. You can scan the QR code or install through the ByteSIM App. Most plans start when the eSIM first connects to a supported network at your destination.
Most ByteSIM plans start when the eSIM first connects to a supported network at the destination, not when you buy or install it. Some plans may start on a selected date or require activation through the ByteSIM App. Always check the activation note shown in the plan details.
All ByteSIM plans include unlimited data, and most plans support high-speed 5G where available. Check the plan’s Network or Speed field before purchase: if it shows “Speed: 5G/4G/LTE”, the plan supports 5G; if it shows “Speed: 4G/LTE”, 5G is not included. Daily and total-data plans continue at unlimited 128kbps after high-speed data is used. Truly unlimited plans shown as “Unlimited Data (*5G Network)” or “Unlimited Data” guarantee smooth 1080p HD streaming speeds, even under Fair Usage Policy. Actual speed depends on local coverage, device support, and network conditions.
On daily and total-data plans, your connection continues at unlimited 128kbps after high-speed data is used. This is a 2G-like backup speed designed to keep you reachable, not a normal browsing speed. It is mainly useful for text messages, simple notifications, and contacting ByteSIM support if needed. Web browsing, maps loading, social media, video calls, app downloads and streaming may feel noticeably laggy or may not load smoothly.
Calls and texts are available only on ByteSIM voice plans. Data-only plans do not include traditional phone calls or SMS, but you can still use apps such as WhatsApp, iMessage, Telegram, FaceTime, Google Maps, Uber and email over mobile data.
Yes. Your WhatsApp number stays the same when you use ByteSIM for mobile data. WhatsApp, iMessage and other apps remain linked to your existing phone number. On a dual-SIM phone, you can keep your primary SIM active and use ByteSIM as your travel data line.
Yes. All ByteSIM plans support hotspot and tethering. You can share your mobile data with a laptop, tablet, or another phone. Hotspot performance depends on your device, local coverage, network conditions, and how many devices are connected at the same time.
You can manage your eSIMs and access all purchased data plans by logging into the ByteSIM App. The app lets you view your purchased plans, check plan details, and manage your travel eSIMs in one place. Some plans may support renewal or top-up, while others require purchasing a new plan after the current plan is used or expires.
If you lose your QR code, log in to the ByteSIM App or check your order email to access your purchased eSIM details. If you delete an installed eSIM from your device, contact ByteSIM support before trying to reinstall it. Some eSIM profiles can only be installed once and may require support review or replacement.
ByteSIM offers a 180-day refund guarantee for eligible orders, subject to the Refund Policy. If your eSIM cannot be used due to a verified service issue, contact 24/7 support for troubleshooting, replacement, or refund review. Refund eligibility depends on the order status, plan usage, destination, and policy conditions. See the ByteSIM Refund Policy for details.