Z1

Release date not published

An automatic upper-arm monitor with 90-reading memory, a three-reading average and USB-C power.

Product links

Type: Upper arm
Irregular heartbeat detection: Yes
AFib detection or ECG: No
Method: Automatic oscillometric upper-arm measurement during deflation, with semiconductor pressure sensor. First retail date unresolved
Accuracy: Pressure range 30–260 mmHg and pulse 40–199 bpm. Maker accuracy ±3 mmHg pressure and ±5% pulse
Clinical validation: Maker claims ESH approval. Medaval records equivalence to Rossmax CF175f rather than a published direct Z1 validation study, and notes unpublished equivalence evidence; headline validation omitted
Features: Cuff-fit and movement detection, hypertension risk indication and generic irregular-heartbeat warning. No AFib-specific screening or ECG

Users: 1
Readings stored: 90
Bluetooth and app: No
Memory: One history of up to 90 readings with sequence numbers and an average of the last three. No user selector or dated reading history in current guide
App: No Bluetooth or data transfer; USB-C is a power connector
Power: Four AAA cells, DC 6 V. Optional USB-C DC 5 V supply rated at least 1000 mA; guide excludes USB PD chargers and battery charging. Automatic shutdown after one minute without key operation

Display details: 69 × 64.4 mm LCD in maker page. IP21
Size: 100 × 86 × 68 mm (L × W × H); 218 g without batteries
In the box: Maker lists batteries, Universal Cone Cuff, instruction manual and string bag. Power adaptor and USB cable optional

Model	Type	Users	App	Validated	Released
A&D MedicalUA-611	Upper arm	–	No	–	–
BeurerBM 23	Upper arm	–	No	–	–
BeurerBM 25	Upper arm	–	No	–	–

Rossmax Z1 angled view with Universal Cone Cuff and USB-C power socket: rossmax.com/images/products/Z1/Z1_PP_002_2.png
Rossmax Z1 with cuff, carrying bag, instructions and retail box: rossmax.com/images/products/Z1/Z1_Accessories.jpg