[NEED HELP] how to create these 2 medical devices?

[FreDiabetics]

This is my Dexcom G6-CGM-Transmitter for tracking my blood glucose data 24hours. I have already created the baisc shape, but I have some trouble with the shadows around for a real 3D look. can anoybody point me in the right direction? 

Also the upper round shape shadow should look more real than now. 

Any Ideas how to build the light purple sensor housing on the first image?

 Transmitter with sensor housingTransmitter onlyscreenshot illustrator

[Monika Gause]

To build shading there are acouple of methods:

1. gradients

2. effects (glow, blur)

3. blend modes and stacked objects

4. gradient meshes

5. freeform gradients

6. blends

7. gradients on strokes

Most of the time a couple of these methods need to be combined using different objects in order to achieve the look you're after.

I'm not sure how exactly you want this to look like and I don't know how that object looks. So maybe you want to take a photo of it and then just draw it according to that photo?

[FreDiabetics]

I have uploaded 3 Images I thought this would be enugh. the illustrator screenshot shows the transmiter and rightside is my already done work. 

wait I upload them again in this comment. sorry I dont know what goes wrong with the image upload in the mainpost 😞 

I also atteached the images in the main post 

transmitter with sensorhousing

transmitter only

illustrator screenshot

[Monika Gause]

Those images were visible in your post. But I don't understand what you want to know.

Also those look like parts of the device. So what is it that you want to draw?

[FreDiabetics · Accepted solution]

okay I want to create the same shadow around the transmitter, thats why I put the arrows around. I could have explained that better.

I want to create the same shadow around the transmitter my one is too flat, the left transmitter looks much more "plasticaly" It has a better 3D look. I think thats only made by the shadows for the depth. 

the round depression above. should also look more "plasticaly"

and I wanna create the purple sensor housing which is around the transmitter (image transmitter with sensorhousing) But I guess this could be done with the pathfinder 

thanks for your help 🙂