2 Clearblue tests, 2 different results

Hi, I have purchased two separate Clearblue testing kits (1 is Advanced Digital with its corresponding sticks, and the other is a Connected Digital with its own corresponding sticks). Today I assembled each test with its correct stick, and using the same urine sample at the same exact time, I used each test. The Advanced Digital test gave me a flashing smiley indicating high fertility, and the Connected Digital gave me a circle, indicating low fertility. This of course concerns me regarding the legitimacy of both Clearblue testing systems. Can you please let me know what the problem is? I’ve spent a total of over $65 on both systems and this concerns me that neither can be trusted.