Yes - the ADXL335 is embedded in boards with Additional components that will influence some capabilities such as 0.1uF capacitors which set the bandwidth of each axis to 50Hz.
Yes on the UNO you can use in your code analogReference() to define the settings. Basically the range on your uno will be 0-5V by default whereas on the other board it’s 0-3.3V (sampled on 10 bits) so the sampled value does not denote the same voltage
After changing the analog reference, the first few readings from analogRead() may not be accurate. So wait a bit