The best replacement for sb 700 is sb 900.

The best alternatives to sb 700 are rated as following:
★★★★★  sb 900
★★★★★  sb 910
★★★  sb 600
★★★  sb 800
★  yongnuo
★  metz 50
★  yn 560 ii
★  910
★  nissin di866
★  900

Your alternative for sb 700 is not listed? Suggest!
Speaking about sb 700, one probably shouldn't forget about pocket wizard.

Other search terms related to sb 700 and their ratings are:
★★★★★ pocket wizard
You have in mind a companion for sb 700 and it is not yet here? Propose!



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sb 700
sb 900
sb 910