Here's Comparison of four car battery tester,meybe could help to you how to chose a battery analyzer.

Tool Name	Foxwell Bt705	Foxwell BT100	Launch BST460	Launch BST760
image
Price	$118	$45 and free shipping	$135	$399
Language	English, French,	English, French, Dutch, German, Spanish, Russian and Chinese	English/ Russian/	English, Spanish, German, French and Italian
	Spanish, Dutch,		Japanese/ Chinese
	German, Italian,
	Russian, Polish,
	Portuguese,
	Simple Chinese,
	Traditional Chinese
Function	Check battery health	check battery health and faults		Directly test the battery of the loss of electricity , bad cell battery
	and detect faults of		Directly test the
	starting and charging system.
			battery of the loss of
			electricity, bad cell battery
Auxiliary function	No	NO	No	View / Print
				Ammeter Function
				Thermometer
				QC mode
				License plate number input function
				Time and time format Adjustment
				User information input
				Display backlight brightness adjustment function
				Print sharpness adjustment
				Standby power function
Vehicle applications	passenger cars	passenger cars and light duty trucks	/	Universal car till 2014
	and duty trucks
Scope	Tests 12&24	Voltage measuring: 6V to 18V	suitable for 6V & 12V battery system and 12V & 24V starting and charging system detects	6V & 12V battery system and 12V & 24V starting and charging system detects.Apply to the European and American countries
	volt charging system
Battery types	Regular flooded,	Flooded, AGM, GEL	A variety of models, all kinds of batteries , and a variety of system mode	?
	AGM flat plate ,
	AGM spiral and GEL
Battery rating	100 – 2000CCA	100 – 800CCA	CCA 100-2000
			BCI 100-2000
			CA 100-2000
			MCA 100-2000
			JIS 26A17 – 245H52
			Standard DIN 100-1400
			The IEC 100-1400
			EN 100-2000
			SAE 100-2000
			GB 100-1400
Standard support	CCA,BCI,CA,MCA,	CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SEA	CCA,BCI,CA,MCA,	CCA,BCI,CA,MCA,
	JIS,DIN,		JIS,DIN,IEC,EN,SAE,GB	JIS,DIN,IEC,EN,SAE,GB
	IEC,EN,SAE,GB
Built-in printer	Built in Bluetooth Printer	NO	NO	Built-in thermal printer , the test results can be printed out at any time.

Summary:

1.Launch BST760 has many Auxiliary function ,but it's too expensive，if you only check battery health and faults,foxwell bt100 is the best choice.

2.Foxwell tool supports more Language.

3.If your is duty trucks, foxwell BT705 and foxwell BT100 more suit  duty trucks.

Bluetooth Printer for Foxwell BT705 Battery Analyzer

Save data for bt705.

this article from foxwelltool tech office blog :Which battery tester better Launch or Foxwell?