Festival connectivity, when everyone else is on the network too.

Crowds overwhelm cell towers. We rate expected congestion and list what to download beforehand for 14 festivals and large events.

14 events · Updated May 2026 · By The Field Test Unit

Field Pick: HelloRoam — 4.5/5 across 185 countries

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4 events

Music Festivals

Coachella Valley Music and Arts FestivalIndio, California · severe congestion Full Moon PartyKoh Phangan · moderate congestion Glastonbury FestivalPilton, Somerset · severe congestion TomorrowlandBoom, Belgium · severe congestion

8 events

Cultural Festivals

Burning ManBlack Rock Desert, Nevada · severe congestion Carnival of VeniceVenice · moderate congestion La TomatinaBunol, Valencia · moderate congestion New Year's Eve SydneySydney · severe congestion OktoberfestMunich · heavy congestion Rio CarnivalRio de Janeiro · severe congestion Running of the Bulls (San Fermin)Pamplona · heavy congestion Songkran (Thai New Year Water Festival)Bangkok / Chiang Mai · heavy congestion

2 events

Religious Festivals

Diwali (Festival of Lights)Various (Delhi, Mumbai, Jaipur) · heavy congestion Holi (Festival of Colors)Various (Mathura, Vrindavan, Delhi) · moderate congestion

Field Pick: HelloRoam

4.5/5 · 185countries · plans from $0.29/GB · from $3.49 · 180-day refund.

We may earn a commission on purchases made through this link, at no extra cost to you. Commissions never influence our rankings — our review process.

See plan prices

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