The split scimitar second generation winglet which has recently been appearing as retrofits on Boeing NG 737s (especially Southwest and United -800 models) differs appreciably from the split winglet on the 737 MAX.
The angles are not the same, precluding detailed comparison, but you can still tell these are not the same
MAX split winglet:
Split scimitar now available for 737-700, 800, 900, and BBJ
