Existing phone hotspot
Apple says Personal Hotspot shares cellular data from an iPhone or cellular iPad. Carrier support is required; fees may apply, device limits depend on carrier/model, and some features may not work. Check permission, data terms, and app/device fit. Apple
Compare a separate option
For unmet tasks, compare the actual data allowance, equipment fees, total price, and cancellation or equipment-return terms. GFiber says its label helps compare speeds, fees, and prices; its typical speeds come from internal wired tests, not guaranteed wireless performance. GFiber
Ask whether backup shares the primary network, which devices need power, and whether manual or automatic switching is supported. Coverage/continuity are unknown; do not rely on it for emergencies.