Osaka 4 Days Group of 6+ Friends: Best Value SIM/WiFi

Splitting one pocket WiFi rental six ways is dramatically cheaper per person than buying six individual SIMs — but at 6+ people, check whether you actually need two routers instead of one.

The real question at this group size isn’t cost — it’s logistics

Cost-wise, one router split across a group of 6 is cheap no matter which provider you pick. The actual constraint is that most rental routers are specced for around 5 simultaneous connections, and everyone sharing one router needs to stay within normal WiFi range of whoever’s carrying it.

If your group mostly moves together as one pack, one router is fine. If you expect to naturally split into two smaller groups during the day — half shopping in Shinsaibashi while the other half heads to a museum — renting two routers (3 people each) is worth the extra cost to avoid anyone losing connectivity.

How much data does a group of 6 actually use?

App / activity	Approx. data use
Google Maps navigation (per person)	~50-100MB per day
Social media / photo sharing (per person)	~500MB-1GB per hour
Group messaging and photo sharing	~100-300MB per day, combined

Shared across 6 people on one connection, expect roughly 6-10GB/day combined if everyone’s browsing and sharing photos casually — well within any unlimited pocket WiFi plan.

Recommended options

Split six ways, a 4-day pocket WiFi rental works out to a small fraction of what six individual SIMs would cost. If you go with two routers instead of one, the math still favors pocket WiFi over buying a SIM for every person.

Osaka-specific notes

Dotonbori and Shinsaibashi handle the load well — strong, dense urban coverage throughout. The one exception is Universal Studios Japan: it draws huge crowds, and network congestion at peak times can slow speeds regardless of provider. That’s simply a very busy cell site, not a knock against any one rental.

Should you split into two routers?

If your group is staying together most of the day, one router is enough. Planning to regularly split into subgroups? Get two routers and split the group roughly in half. Want everyone independently connected no matter what? Individual eSIMs per person will do it, though that’s the most expensive option at this group size.

For the full pocket WiFi vs. individual SIM breakdown, see our Pocket WiFi vs SIM Card comparison.

Frequently Asked Questions

Can one pocket WiFi router really support 6 people?+

Most rental routers are specced for around 5 simultaneous connections, so 6 people is right at the edge. If your group tends to stay together, it usually works fine in practice; if you want a safety margin, consider two routers.

Is it cheaper to get two routers or six individual SIMs for a group of 6?+

Two routers split among six people is almost always cheaper than six individual SIMs, since you're paying for two rentals instead of six separate plans.

Does Universal Studios Japan have weaker signal?+

Not weaker exactly, but the extremely high visitor density can cause network congestion at peak times, which can slow speeds for any provider — it's not specific to one SIM or WiFi service over another.