They are the same font (I used a sample of my own handwriting to create a font when I had the first one done) and the same artist at the same shop with the same kind of ink. A one-liner needle was used for both. The one on my left wrist was done originally 4 years ago and Cheryl went over it a second time when I got the right wrist done in August. I didn't realize how much the one on my left wrist had blurred until I compared it with the new one, which is to say that the blurring wasn't that noticeable. I also am pretty much always wearing a watch on my left wrist, but I usually wear them loosely and only put them over my tattoo when I'm in the sun for prolonged periods (easier than sunscreen and doesn't need reapplication). Anyway, I hope that this is helpful for someone.
(click to embiggen)