Quick Verdict
The eufy Wearable Breast Pump S1 Pro is the only wearable breast pump with built-in HeatFlow heating. With seven heat settings, a portable charging case that provides up to five days of power, and smart OptiRhythm control through the eufy Baby app, it delivers a comfortable, discreet and highly personalized pumping experience.
What Makes It Unique
HeatFlow Heating Technology
The S1 Pro is the only wearable pump with built-in heating. A precision temperature sensor checks every 3 seconds to maintain uniform warmth across seven adjustable settings (95-105 Fahrenheit), which enhances milk flow and helps prevent clogs.
Smart, Personalized Pumping with OptiRhythm
The eufy Baby app plus OptiRhythm technology let you fine-tune pumping rhythm, suction strength and speed - and control the pump remotely for a hands-free experience.
Hospital-Grade Suction, Gentle Design
With up to 300 mmHg of hospital-grade suction and an ergonomic 105-degree design, the S1 Pro balances powerful output with comfort. Flanges fit all nipple sizes from 17 mm to 24 mm, and all skin-contact parts are BPA-free, food-grade materials.
Portable Charging Case
The charging case keeps your pump charged and ready for up to five days - perfect for business trips or weekend getaways.
S1 Pro vs S2 Pro: Which Should You Choose?
| Feature | S1 Pro | S2 Pro |
| Heating | HeatFlow (7 settings) | HeatFlow 2.0 |
| Vibration massage | No | Yes (VIBRAPUMP) |
| Charging case | 5 days | 7 days |
| Suction | 300 mmHg | 300 mmHg |
| Price | S$555 | S$679 |
Choose the S1 Pro if heating is your priority and you want the best value. Choose the S2 Pro if you want the fastest sessions with vibration massage.
What's in the Box
The package includes 2 pumps with 24 mm flanges, inserts in 17/19/21 mm, 2 magnetic charging cables, a storage bag, 2 dust covers and a cleaning brush.
Specs at a Glance
| Suction | Up to 300 mmHg |
| Heat settings | 7 (95-105 Fahrenheit) |
| Charging case | Up to 5 days of power |
| Flange sizes | 17 - 24 mm |
| Materials | BPA-free, food-grade |
| Price | S$555 |
Should You Buy It?
If you want the comfort and milk-flow benefits of heat in a wearable pump - and you value app-based smart control - the S1 Pro is a standout choice. It is also the better value of eufy's two flagship wearables, making it a smart entry point for first-time wearable pump users.