Convertible car seats with phone alerts for unbuckling
Which convertible car seats have sensors that send alerts to a phone when the harness comes loose or a child is unbuckled?
Evenflo Revolve360 Slim 2-in-1 Rotating Car Seat with SensorSafe: SensorSafe alerts in real time over Bluetooth to four potentially unsafe conditions: unsafe ambient temperature, child unattended, child buckled too long, and unexpected chest clip unbuckling. CYBEX Sirona M SensorSafe 2.0: SensorSafe can alert a smartphone when a buckled child remains after shutdown, the clip opens during travel, rear-seat temperature is uncomfortable or sitting time is extended; alerts may escalate to emergency contacts with GPS coordinates. Cybex Sirona S SensorSafe: The Bluetooth chest clip can alert the app when it is unbuckled, the rear seat becomes too hot or cold, or the driver leaves the child behind. CYBEX Eternis S SensorSafe: The chest clip can alert the phone app about unbuckling, temperature, and periods of inactivity. Cybex Gold Eternis S Sensor Safe All-In-One Car Seat: The video demonstrates the SensorSafe OBD receiver and app alerts for temperature, an unbuckled chest clip, and a child left in the car with location shown. It also shows the three-position reclining headrest and several colour options. Cybex Callisto G 360: Reports the SensorSafe chest clip links to a phone app that warns about unbuckling, unsafe temperature and leaving a child behind.
| Product | Why | Unbuckle alert | Modes and limits | Weight |
|---|---|---|---|---|
| 1. Evenflo Revolve360 Slim 2-in-1 Rotating Car Seat with SensorSafe sold by evenflo.com Recall notice: US National Highway Traffic Safety Administration (NHTSA), 2025-09-25: NHTSA Recall 25C010 - Evenflo Company, Inc. - child seat: EVENFLO (recall). The notice may cover only some serial numbers or dates of manufacture, which this listing does not show. What a match means. | SensorSafe alerts in real time over Bluetooth to four potentially unsafe conditions: unsafe ambient temperature, child unattended, child buckled too long, and unexpected chest clip unbuckling. | SensorSafe alerts in real time over Bluetooth to four potentially unsafe conditions: unsafe ambient temperature, child unattended, child buckled too long, and unexpected chest clip unbuckling. listing | Evenflo lists the product in the Convertible Car Seats category, with two modes of use: rear-facing infant car seat and forward-facing harness. guide | - |
| 2. CYBEX Sirona M SensorSafe 2.0 sold by anbbaby.com | SensorSafe can alert a smartphone when a buckled child remains after shutdown, the clip opens during travel, rear-seat temperature is uncomfortable or sitting time is extended; alerts may escalate to emergency contacts with GPS coordinates. | SensorSafe can alert a smartphone when a buckled child remains after shutdown, the clip opens during travel, rear-seat temperature is uncomfortable or sitting time is extended; alerts may escalate to emergency contacts with GPS coordinates. guide | - | - |
| 3. Cybex Sirona S SensorSafe sold by anbbaby.com | The Bluetooth chest clip can alert the app when it is unbuckled, the rear seat becomes too hot or cold, or the driver leaves the child behind. | The Bluetooth chest clip can alert the app when it is unbuckled, the rear seat becomes too hot or cold, or the driver leaves the child behind. guide | It is a convertible car seat intended from newborn to approximately four years. guide | The seat weighs 30.4 lb without the infant positioning pillow. guide |
| 4. CYBEX Eternis S SensorSafe sold by anbbaby.com | The chest clip can alert the phone app about unbuckling, temperature, and periods of inactivity. | The chest clip can alert the phone app about unbuckling, temperature, and periods of inactivity. guide | It supports rear-facing, forward-facing, and booster use from birth up to 120 lb. guide | - |
| 5. Cybex Gold Eternis S Sensor Safe All-In-One Car Seat sold by megababiesusa.com | The video demonstrates the SensorSafe OBD receiver and app alerts for temperature, an unbuckled chest clip, and a child left in the car with location shown. It also shows the three-position reclining headrest and several colour options. | The video demonstrates the SensorSafe OBD receiver and app alerts for temperature, an unbuckled chest clip, and a child left in the car with location shown. It also shows the three-position reclining headrest and several colour options. review | It is an all-in-one convertible with rear-facing, forward-facing and booster modes, from birth to 120 lb. guide | - |
| 6. Cybex Callisto G 360 sold by albeebaby.com | Reports the SensorSafe chest clip links to a phone app that warns about unbuckling, unsafe temperature and leaving a child behind. | Reports the SensorSafe chest clip links to a phone app that warns about unbuckling, unsafe temperature and leaving a child behind. review | The Callisto G 360 is an all-in-one car seat that grows from a harness seat to a booster without buying another seat. listing | The video reviewer describes the seat as heavy at about 35 lb and suggests a dry fit in your car; sources disagree on weight, as BabyGearLab reports 35.8 lb while the maker lists 35 lb. review |
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Written 2026-10-30T12:17:46.783Z.
About the recall notices above: each matches a model named in a regulator's notice, as the index stood on 2026-09-25. This listing is the brand and model a regulator's notice names. Two AI models judged it so independently. It does not mean the unit on sale is from an affected batch, that the store knew, or that the product is illegal where the store sells it; a US recall does not bind an Australian store. The notice may cover only some serial numbers or dates of manufacture, which a listing does not show. RoboTrunk never limits or blocks a purchase over a notice; read the notice and decide.
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