This　study　presents　the　design　of　a　PPG　and　ECG　synchronous　acquisition　system　based　on　NRF52832.　The　synchronous　acquisition　of　pulse　wave　signal　and　ECG　signal　is　achieved　by　designing　PPG　circuit　and　ECG　circuit,　while　data　integration　and　Bluetooth　transmission　are　realized　by　NRF52832.　Finally,　the　collected　data　are　input　into　the　trained　classification　model　for　BP　prediction,　and　the　device　achieves　wearable,　synchronous　and　real-time　acquisition.　The　experimental　results　show　that　the　signals　acquired　by　the　device　can　be　used　for　noninvasive　continuous　BP　prediction.　©　2023　IEEE.