When it comes to photography whilst travelling I never compromise. I guess I have a bit more of a technical approach to my photography as well. So next trip I'll be taking a fair bit of kit. The weight will be more, but the results worth it. Personal preference. If you are after better quality and choice of lenses for certain shots in certain conditions, DSLR or mirrorless with interchangeable lenses is better than a point n shoot or smart phone camera. I'll also be bringing a tripod for long-exposure work during day and night. Mirrorless quality is quite good and certainly lighter to carry around. Either Sony, Fuji.
Backup options include multiple memory cards, post them home as you go or bring a small laptop, as it's best to have multiple copies of your photos. Internet can be limited in some places, so emailing or Dropbox is not practical.