| Score (out of 5)* | 1.52 | 4.6 | 4.3 | 4.7 | 3.7 | 
| Starting monthly cost | $49.95 | $29.95 | $19.95 | $24.95 | $29.99 | 
| At-home device range (feet) | 800 | 1,300–1,400 | 600–1,400 | 1,000 | 300–600 | 
| Connection type | Cellular, landline | Cellular, landline | Cellular, landline | Cellular, landline | Cellular, landline | 
| Fall detection (cost per month) | N/A | Yes, $10 | Yes, $11 | Yes, $10 | Yes, $11 | 
| Battery Life | Up to 10 years | Up to 5 days | Up to 3 days | Up to 5 days | Up to 40 hours | 
| Response time (seconds) | N/A | 46–60 | 1–45 | 60+ | 50 | 
| Location tracking | Yes | Yes | Yes | Yes | N/A | 
| Water resistant or waterproof mobile system | Waterproof | Water resistant | Water resistant | Water resistant | Water resistant | 
| Warranty | Yes | No | No | Yes | Yes |