For me:
Alarm clock - Yes, I use my phone's alarm a lot, but no, I still have a Sony alarm clock by my bed, because its soft light in the dark is a lot nicer. Plus it's always there: I don't have to look for it. But who regularly buys alarm clocks?
Watch - I haven't used a watch to check the time for a very long time: ever since PCs and cars all had clocks on them. But I still wear them as jewelry. No smartphone or smartwatch in the foreseeable future is going to replace a Cartier.
Fitness Tracker - Got me. Never liked them. I don't really need a band to tell me that I'm not exercising enough.
MP3 Player - The last MP3 player I bought was an original iPod. But the number of times I've listened to music on my smartphone in the last 5 years is zero. Not a fan of headsets, preferring car, PC or home stereo.
P&S Camera - Last P&S I bought was a S110, and before that some other Canon about 7-8 years before it. I doubt I will replace the S110 any time soon. So yeah, probably, smartphone has killed this for me. Though, who knows. If canon makes a small enough superzoom, anything's possible.
Camcorder - Haven't bought one for 15 years. Last one was a sony that took DVD recordable. But DSLR probably killed camcorder for me more than smartphone. The storage and media portability on a smartphone makes it so that short clips are fine, but real-length recordings (like filling a tape or disc on camcorder), not so much.
Payphones - Yup, got me there. Cell phones have largely killed the need for these, though I wish there were a few more around for emergencies.
Landline phones - No, I still have TWO at home. You don't need to charge them, they continue working in an emergency, and I haven't yet found a way to have like, 10 smartphones with the same number littered all over the house. Plus, two, three people can pick up handsets and join the same call; much harder on a cell phone. Also, my mom likes the giant buttons on her phone.
Newspapers - A little bit. But mostly, it's the Internet. I do not read my smartphone on my toilet. There are tablets for that! Ok, TMI.
Gameboys - Yeah, these have faded for me. But mostly because I like pixel-graphic RPGs and TBS games, of which there are very few new releases. And the latest 3D Gameboys did nothing for me. Nintendo Switch is doing well!! I am not a big fan of games on my smartphone, not because I don't like the smartphone as a gaming platform, but because I don't like being out of juice to take or make a phone call.
Flashlights - Not at all. I have real flashlights from small size to huge. It would be more accurate to say that LED flashlights have largely replaced all other flashlights (though I still have a a Xenon searchlight).
Address Book - Yup. But the PocketPC had killed that already. So technically, it killed the PocketPC.
Personal Video Players / Portable TV - No, these were killed off by the tablet for me. I never watch videos or TV on my smartphone, again, because doing so just depletes the already pathetic battery.
Voice Recorders / Dictaphone - Absolutely not. A voice recorder is superior to a smartphone for recording audio in every meaningful way, other than being one more device. Batteries is a huge one, but microphone quality is like... massive.
Notepad - Sure. But not by smartphone. Tablet.
Photo Album - Sure, prints are not nearly as common now, and books of prints are nearly extinct, and I often show photos on my phone, so smartphones are certainly a contributor. The real culprit, though, is digital photography, because even when I had a Motorola RAZR, I didn't keep photo albums any more.
Thermostat - No >.< I do not use my smartphone as a thermostat, especially the type pictured - to control the temperature of my home. I can't imagine how this would be a good idea.
Dumb Phones - Yeah, definitely, I've replaced my dumb phone with smartphone.
Birds - Who leaves their cell phone, CONNECTED TO A CALL, by a beehive by accident again?
Birds - Who leaves their cell phone, CONNECTED TO A CALL, inside a bird's nest?! But I call bullS___. Connect a call and put your phone beside an egg for 2 minutes. Put another egg in a microwave and punch in 2 minutes. Compare.
Sperm - I call bullS___ to that one too. Cell phones are not proven to have any negative health effects. In any case, they emit very little electromagnetic radiation. Those people who don't carry cellphones because they think these devices emit too much electromagnetic radiation need to get rid of nearly all technology, and move into a cabin in the mountains, because anywhere there's civilization, and most of the highways connecting cities, the airwaves are blanketed with artificial electromagnetic radiation. And everywhere on Earth other than a deep cave or an underground bunker, there's plenty of natural electromagnetic radiation of the same sorts.
How about this.... victim of smartphones: CONVERSATION at the lunch and dinner table!
Anyway, usually they have some large button to silence them.
