which is better x-finder or satlink ws6932

Hellow dear,
Please i want to buy asatellite finder.
which is better x-finder device
or satlink ws6932 ??
The device must have the following specifications ::1- measures dvb-s  and dvb-s2  signals .
2- can detect weak signals that out of our coverage
     especially astra 19.2 weak signals .
3- having very fast and sensitive spectrum analyser.
4- the strength and quality display of the measured
     Signal must be accurate and true reading
5-  The display reading must be clear under sunlight.
       So please, which of the two models can achieve  these
       Specificatios??