which obd2 scanner is best

{"cid":"91192631","title":"Universal Konnwei OBD2 Scanner Automotive Code Reader Diagnostic Car Test KW820","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/4d\/fc\/c732325a56c143aea31a747021bb-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"KONNWEI","Model Number":"KW820","Minimum Order Quantity":"10 Piece","Delivery Time":"100 Pieces in 2 working days","Certification":"ROHS CE FCC","Place of Origin":"China","Payment Terms":"T\/T, Western Union, Paypal, MoneyGram, Visa, L\/C","Supply Ability":"3000 pieces per week","Packaging Details":"25*18*8cm 25pcs\/cn Carton size: 55*39*46cm 20kg","Brand":"KONNWEI","Type":"OBD 2 Car engine tester","Application":"Can detect 12V gasoline and diesel cars","IC Chip":"STM32F103C8T6 Chip","Function":"OBD2 automotive fault Data code reader","Language":"5 Languages EN\/ FR\/ DE\/ NL\/ ES","Upgrate":"N \/ A","Dispaly":"2.8 Inchs Black& White Screen"}}

{"cid":"90034454","title":"LAUNCH X431 Elite Car Full System Diagnostic Tools Auto OBD OBD2 Scanner Active Test ECU Coding Multilingual Free Update","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/cb\/47\/4bea06e1041fffacefe13385eddd-200x200-1.jpg","attrs":{"Brand Name":"JIUTECH-Lucy","Model Number":"for LAUNCH X431 Elite","Minimum Order Quantity":"1","Delivery Time":"1 work day","Place of Origin":"CHINA","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"1000","Packaging Details":"PACKAGE","Model Name":"for LAUNCH X431 Elite","Origin":"Mainland China","Quality":"Superior","Shipping terms":"DHL,EMS,TNT,UPS,FEDEX","Software Version":"2024 Version","Hardware Version":"2024 newest Version","Item Name":"LAUNCH Elite for BENZ AUDI BMW GM","Feature":"Active Test, ECU Coding, Guide Functions, ect","Live Data":"Illustrate 4 kinds of live data at the same time.","Auto VIN scan":"automatic identification of VIN code matching models","Diagnostic Report":"automatic generation and uploading of diagnostic reports"}}

{"cid":"91154773","title":"Auto Code Scanners Multilanguage CAN OBDII Scanner T50","imgUrl":"","attrs":{"Price":"BEST PRICE","Minimum Order Quantity":"1","Delivery Time":"within 24 hours after pay","Place of Origin":"China","Packaging Details":"standard carton box","Payment Terms":"Paypal, western union, bank transfer, alipay","Supply Ability":"2000\/week"}}