Microlife BP A6 BT vs Rossmax X9 BT

Every spec side by side, from each maker's published figures.

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BP A6 BT compared with X9 BT
MicrolifeBP A6 BTRossmaxX9 BT
Overview
Released––
Measuring
TypeUpper armUpper arm
Clinically validatedYes–
Irregular heartbeat detectionYesYes
AFib detection or ECGYesYes
MethodOscillometric upper-arm measurement during deflation with Gentle+ control. Single or AFIB/MAM triple mode selected by side switch; three measurements separated by 15 seconds produce one analysed result. Questionable measurement triggers a fourth; individual triple-mode results are not displayed. Actual first retail sale unresolvedAutomatic oscillometric measurement or auscultatory mode using a separate stethoscope and marker button. Intended for adults at home and in clinical settings. First-sale date unresolved
AccuracyCurrent E-V11 MDR guide gives systolic 60–255 mmHg, diastolic 40–200 mmHg and pulse 40–199 bpm; global support lists pulse 40–200. Older S-V10 guide and French maker page give blood pressure 20–280 mmHg and pulse 40–200. Static accuracy ±3 mmHg and pulse accuracy ±5%; cuff-pressure display 0–299 mmHg is separatePressure 30–260 mmHg; pulse 40–199 bpm. Maker accuracy ±3 mmHg pressure and ±5% pulse
Clinical validationSTRIDE BP accepts exact A6 BT for adult and diabetic home use by equivalence to BP A100, with referenced 2009, 2018 and 2021 studies. This does not establish separate published A6 BT trials for every special population mentioned by the maker. Blood-pressure validation and AFib screening are separate claimsMaker carries ESH/BIHS claims. Medaval's exact X9 BT entry says peer-reviewed validation evidence and protocol-compliant equivalence remain unproven; non-Bluetooth X9's registry listing is not transferred
FeaturesAFib pulse-irregularity screening active only in AFIB/MAM triple mode, not single measurement. Does not record an ECG or provide an ECG-confirmed diagnosis. Cuff-fit and arm-movement indications, LED pressure classification scale, low-battery warning, automatic switch-off and lock switch to prevent accidental activationPARR flags AFib, premature beats, tachycardia above 100 bpm and bradycardia below 55 bpm, including combined findings. Pulse screening, not ECG. Cuff-fit, movement and hypertension indicators
Cuff
Cuff fits22–42 cm16–46 cm
CuffCurrent MDR guide supplies Microlife Soft Cuff M-L 22–42 cm. Optional soft cuffs S 17–22, M 22–32, L 32–42 and L-XL 32–52 cm are not all supplied. STRIDE lists validated 22–42 and 32–52 cm sizesSupplied latex-free small 16–26 cm, medium 24–36 cm and large 34–46 cm cuffs; overall range requires choosing the appropriate cuff. Cuff holder
Connections and memory
Users11
Readings stored99 (better)90
Bluetooth and appYesYes
MemoryOne history of the last 99 dated readings, with no user selector in exact controls. First recall shows average of all stored values; older guide calls it 28A without defining a 28-day interval. Forward/backward buttons navigate history, oldest overwritten when full. Complete history can be cleared, individual saved values cannot; newly displayed reading can be excluded. Readings survive battery replacement while clock requires reset. Isolated manual wording per user does not establish two separate historiesSingle 90-reading history with date/time for automatic measurements; oldest replaced when full. Auscultatory readings are not included in this stored automatic-mode history
AppBluetooth 4.0 synchronisation with Microlife Connected Health+; connection active after measurement and can be started with forward button in standby. USB transfer to Blood Pressure Analyzer+ PC software. Both manuals specify Mini-B five-pin connector in PC-link section, while current package list calls its cable Micro USB; connector wording conflict retained. French page keeps older app OS requirements; current supported phone versions should be checked with the appBluetooth low energy sends completed readings to Rossmax Healthstyle after pairing; stored automatic-mode readings can also be transferred. Auscultatory systolic/diastolic readings transfer when marked with the button. Guide documents an optional specially designed USB cable for PC transfer, but Rossmax now says BP Manager software is discontinued and no longer available; monitor remains independently usable
PowerFour 1.5 V AAA alkaline cells; approximately 400 measurements with new batteries, not a separate triple-cycle count. Optional Microlife DC 6 V, 600 mA adapter; French bundle list includes it despite technical table calling it optional. NiMH cells supported with external charging, not charged in monitorFour AA alkaline cells, DC 6 V; supplied 6 V mains adaptor rated at least 600 mA. Automatic shutdown after one minute without key operation
Design
Display detailsLCD with date/time and AFIB/MAM indicators; START/STOP, memory, time and forward/backward controls. Separate lock and single/triple switches, cuff, USB and DC sockets. IP20Backlit 99 × 115 mm LCD with mode and pulse-arrhythmia flags; IP21
SizeCurrent E-V11 MDR guide, French product and global support agree on 160 × 80 × 32 mm and 354 g including batteries. Older exact S-V10 guide incorrectly gives 150 × 100 × 50 mm and 580 g; conflict retained rather than transferring that table173 × 115 × 64.5 mm (L × W × H); maker guide lists 410 g without batteries
In the boxCurrent MDR guide lists soft M-L cuff, cuff holder, cuff-size marker, USB cable, storage bag, diary, instructions and four AAA cells, with adapter optional. French regional list includes adapter; regional bundle differences remain qualifiedBatteries, small/medium/large cuffs, 6 V adaptor, instruction manual and zipper bag; PC cable optional. Stethoscope not listed as supplied

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