Something that really upsets me about the digital world we now live in, is the way that memories and photographs now only live on our screens - it's such a shame that nobody prints out their photos anymore. The difficulty I've found with printing photos taken with my iPhone is that the quality isn't good enough for a regular 4x6 print. Photos with the front-facing camera are particularly terrible. But, printing them with this printer makes the quality look better than it was when it was taken and the size of the Instax Mini works well with the iPhone picture quality.
The printer is portable and battery operated (it takes 2 x CR2 batteries). However, it does come with a power cord to plug into a powerpoint to recharge it. I've only had it for a day so I'm not sure how well the battery life lasts but I'll update this post once I find out. UPDATE 12 APRIL 2015: The battery lasted well over 100 prints and I haven't bothered replacing the batteries, I just use it with the power cord. I've heard it lasts for 100 exposures but I've printed 50 and it still has 3 bars of battery left. If you're printing a lot of photos in one sitting at home, I would recommend printing them with the power cord plugged in and to only have it cordless when taking it with you for the day.
To use the printer, you connect to it using the Wi-Fi connection on your phone and download the Instax Share application to your phone (this printer works with both iPhones and Androids). You then put in the basic password '1111' which you can change later, and then start searching your phone for the photo you want to print.
You then simply click the photo and edit it if you choose to. There are 3 colour filters to choose from:
1. Intelligence filter
2. Black and white
3. Sepia - I have not used sepia yet as it's not really my cup of tea but it would be great if you're trying to go for an antique look
However, filter options are endless if you first edit your picture in other image editing applications (VSCO Cam® is my personal favourite but the A Beautiful Mess and Party Party apps are fun too).
The app also gives you the option to rotate the pictures or use templates where you can add text. I haven't played around with that yet because I prefer the look of the regular pictures with the colour filter. Once you're finished editing you click 'connect and print' and it prints out your photo.
You then watch your picture develop right in front of your eyes.
An advantage of the SP-1 is the ability to finally have black & white Instax prints. Unfortunately Fujifilm do not make black & white film for the Instax cameras yet (hopefully they do eventually) but this is a way to cheat.
As you can tell, it's pretty additive and I'm ecstatic with my purchase. At $200 for the printer and roughly $1 per photo print, I do think the SP-1 is overpriced for what it is, but if it's what you're looking for and you're primarily an iPhone photographer, I couldn't recommend it more. ♥