Although the purpose and ceremonies are similar, the main difference is the size. At Wagah you will be seated quite far back from the action which can make photography quite challenging. Bigger however does mean louder and it is still a very impressive show full of color, choreography and noise.
At Ganda Singh Wala you are up close and personal with the soldiers. Close enough to see the passion in the eyes as they stare across the tiny border at their opposing positions. Here you’re also likely to be the only foreigner visiting, which can make you somewhat of a local celebrity for the afternoon.
At Wagah they merely straddle the border as they march up and down. At Ganda Sing Wala opposing soldiers actually enter enemy territory to lower their respective flags.
It’s an all round more intimate, genuine and local experience at Ganda Singh Wala, very much off the tourist radar, even for Pakistan.