Data-only plans price by bucket: $10–$20 for 5–15GB tablet use, $25–$45 for 50–100GB hotspot duty, and $40–$60+ for unlimited-class backup internet. They beat phone tethering whenever usage is sustained, multi-device, or battery-sensitive — tablets, RV routers, and business continuity top the list.
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Sort standalone data plans by network, bucket size, and device compatibility.
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- Tablet commuters/students: 5–20GB covers streaming-and-homework mixes without touching phone plans.
- RV/van dwellers: paired-carrier router setups (two networks = redundancy) with 100–500GB monthly appetites.
- Home-office continuity: failover routers keep VoIP/orders alive when cable cuts — 20–50GB usually suffices since backups idle mostly.
- IoT clusters: cameras/dashboards sip megabytes; specialized low-data plans price accordingly.
Bucket Sizing Without Waste
| Usage pattern | Suggested bucket |
|---|---|
| Tablet email/browse/some video | 10–15GB |
| Daily HD streaming on tablet | 40–80GB |
| Backup internet (idle-most) | 20–50GB |
| Primary internet substitute | 150GB+ / unlimited-tiered |
Shared-plan add-ons (adding a data device to a family pool) frequently beat standalone pricing — price BOTH paths at checkout.
When Tethering Wins Instead
- Occasional need (<5 days/month): existing phone hotspot suffices; buy nothing.
- Single-device, short bursts: same — tethering's convenience outweighs dedicated hardware.
- Crossing into sustained/multi-device territory: data-only plans repay themselves in speed stability, phone-battery preservation, and cleaner expense separation.
Hardware Pairings Worth Knowing
Data-only SIMs pair with three device classes: tablets with embedded cellular (check model suffixes \u2014 Wi-Fi-only variants can't retrofit), portable hotspot pucks balancing battery and throughput for travel tables, and router-class units with external-antenna ports for fixed placements like RVs and cabins. Matching SIM plan to device class matters \u2014 router deployments favor plans without streaming-resolution caps since routers serve laptops, not phone screens. Buy hardware used freely; depreciation hits hotspots harder than phones.