English technical guide: Home Router 5G SA/NSA and Band Comparison
This page is the English companion to the corresponding SolQvia Japan guide. It preserves the diagnostic boundary used by the Japanese article: distinguish device settings, carrier/account conditions, radio compatibility and service provisioning instead of treating them as one problem.
Recommended diagnostic order
- Identify the exact model number and sales region.
- Compare LTE and 5G bands with the target Japan carrier.
- Check physical SIM/eSIM layout and carrier provisioning requirements.
- Verify VoLTE/IMS, SMS and emergency-call support separately from bands.
- For imported devices, verify Japan regulatory/technical-conformity requirements and carrier support.
Important boundary
Do not treat a single successful check as proof of full compatibility. SIM recognition, mobile data, voice, SMS, eSIM provisioning, APN and 5G can succeed or fail independently. Preserve a known-good state before factory reset, eSIM deletion or account removal.
Primary and official sources
- www.docomo.ne.jp
- www.docomo.ne.jp
- www.docomo.ne.jp
- www.docomo.ne.jp
- www.au.com
- www.au.com
- www.au.com
- www.au.com
- www.softbank.jp
- www.softbank.jp
- www.softbank.jp
- www.softbank.jp
- network.mobile.rakuten.co.jp
- network.mobile.rakuten.co.jp
- network.mobile.rakuten.co.jp
- network.mobile.rakuten.co.jp
- schema.org
- solqvia.com
- solqvia.com
- solqvia.com
Carrier procedures and product specifications can change. Re-check the current official page immediately before a SIM/eSIM migration, MNP request, purchase or imported-device use.