A method for evaluating the suitability of a mobile device (112) for performing an analytical measurement is disclosed. The mobile device (112) has at least one camera (122). The method comprises:a) providing the at least one mobile device (112) having the at least one camera (122);b) providing at least one reference object (114) having at least one predefined spatial extension (116) in at least one spatial dimension (126);c) taking at least one image (124) of at least part of the reference object (114) by using the camera (122); andd) deriving at least one item of spatial resolution information by using the image, wherein the at least one item of spatial resolution information comprises one or more numerical values, which quantify the capability of the camera of resolving two or more objects in the image.本發明揭示一種用於評估一行動裝置(112)用於執行一分析量測之適合性之方法。該行動裝置(112)具有至少一個相機(122)。該方法包括:a)提供具有該至少一個相機(122)之該至少一個行動裝置(112);b)提供具有在至少一個空間維度(126)上之至少一個預定義空間延伸(116)之至少一個參考物件(114);c)藉由使用該相機(122)而拍攝該參考物件(114)之至少部分之至少一個影像(124);及d)藉由使用該影像而導出至少一個空間解析度資訊項,其中該至少一個空間解析度資訊項包括量化該相機解析該影像中之兩個或更多個物件之能力之一或多個數值。