Sony aibo (ERS-1000) Review (3★)
Sony · Specialty
Editorial
The ERS-1000 remains Sony's most refined quadruped companion, with its 22-DoF architecture and cloud-driven learning delivering genuine emotional engagement that studies link to improved resident mood in care settings. Yet the two-hour battery fundamentally constrains deployment density compared with always-on alternatives, while the 2026 Japanese sales halt signals eroding commercial momentum despite sustained US availability and service continuity. At over $3,000 plus subscription, it demands premium commitment for what is ultimately a sophisticated but narrow entertainment platform. Facilities seeking scalable therapeutic robots will find stronger ROI elsewhere; dedicated owners gain a responsive digital pet whose personality genuinely adapts over time.
What this assessment is based on
Published manufacturer specifications, deployment reports, and operator accounts. ZeroGantry does not claim hands-on testing of this unit unless stated. Scores are editorial judgments from those public sources — see the methodology for how labels are assigned.
Published 2026-09-02
Pros
- 22 degrees of freedom across head, legs, ears, and tail enabling fluid, lifelike locomotion and expressions per official specs
- LTE + Wi-Fi with SIM slot for persistent cloud AI connectivity and real-time personality evolution
- Deployed via Sony's 2023 foster care program into Japanese nursing homes and medical facilities with documented positive mood impacts on residents and staff
- Dual OLED eyes, 2 cameras (front + SLAM), ToF/ranging sensors, and 6-axis IMUs delivering responsive face recognition and environmental awareness
Cons
- Battery runtime limited to approximately 120 minutes in standard mode with 3-hour recharge cycle at ~14 W draw
- Domestic Japanese sales terminated June 2026 after inventory depletion, with no successor model announced despite ongoing US availability
- Requires mandatory ongoing aibo AI Cloud Plan subscription for full personality, app, and photo features on top of ~$2,900–$3,200 hardware cost
- 2.2 kg mass and companion-only design yield no payload capacity or rugged outdoor utility beyond indoor pet simulation
Sony aibo (ERS-1000) specifications
| Availability | Shipping — Consumer product sold by Sony with a subscription plan. (as of 2026-09-05) |
|---|---|
| Degrees of freedom | 22 |
| Weight | 5 kg |
| Battery life | 2 h |
| Payload | N/A (companion) |
| Max speed | 0.5 m/s |
| Actuators | Micro Servo Motors |
| Primary sensor | Camera + Tactile + IMU + Microphones |
| Function | Companionship |
| Released | 2018 |
| Maturity | Production |
| Status | Active |
| Indicative price | ~¥250,000 |
Sony aibo (ERS-1000) service and repair
ZeroGantry tracks robot repair and service providers across the United States by state, brand, and robot type.
- Robot repair directory — providers by state, brand, and robot type
Other robot reviews
- PARO review — AIST / PARO Robots
- Hyodol review — Hyodol Co.
- temi review — temi Inc.
- Astribot S1 review — Astribot (Stardust Intelligence)
- 1X NEO review — 1X Technologies
- NAO review — Aldebaran / SoftBank Robotics