Samsung Galaxy S23 vs S24: which refurbished Galaxy actually deserves your money?

You've narrowed it down to two phones that look almost identical, and that's exactly the problem. The Galaxy S23 and Galaxy S24 share the same camera bag, similar battery capacity and near-identical bodies, yet one costs noticeably more than the other. Are you paying for a real upgrade, or just a newer sticker on the box?

Both are excellent flagships, and buying either one refurbished on refurbed means professional testing, a warranty and a real price break compared to new. What follows is which one fits how you use your phone.

Both phones ship with the same 50 MP main camera, 10 MP telephoto and 12 MP ultrawide lenses, so the hardware argument is a wash. What changes is the personality behind the shutter.

The Galaxy S23 leans into punchier, more saturated colours and adds extra sharpening, the kind of photo that looks great the moment you post it. The Galaxy S24 dials that back for a more natural, neutral look and holds onto detail better once the lights go down, at the cost of the occasional flatter daytime shot.

Neither is objectively better, they're two photographers sharing the same camera bag with different taste. If you edit your photos anyway, the difference barely registers. If you post straight from the camera roll, pick the S23 for punch or the S24 for accuracy.

On paper, the Galaxy S24's Exynos 2400 chip benchmarks close to the S23's Snapdragon 8 Gen 2, and for browsing, calls and typical apps the two feel interchangeable.

Push the S24 into a demanding game over 5G, though, and a real gap shows up. In sustained sessions, structured testing has recorded the Exynos S24 running noticeably hotter and draining more battery than the S23, with the display auto-dimming from heat in some titles. Switch to Wi-Fi and most of that gap closes, which points to a 5G modem and processing quirk rather than a raw power problem.

The same testing found the S23 holding onto meaningfully more battery over a full day of mixed use. If you game hard on mobile data, the S23's battery edge is worth weighing before you upgrade.

Hold the Galaxy S23 and you feel where its edges round into your palm, a shape Samsung had used for years. The Galaxy S24 trades that curve for flat sides, more slab than pebble, and pairs it with a marginally larger 6.2 in display against the S23's 6.1 in.

Both use the same 120 Hz AMOLED panel type and near-identical resolution, so day-to-day sharpness is a wash. The real difference is in your hand: if you like a phone that eases into your grip, the S23's curves still hold up. If you prefer sharp, confident edges, the S24 is the one that looks new even next to its predecessor.

The S23 Ultra's telephoto setup uses two 10 MP lenses to cover 3x and 10x zoom, but anything in between, roughly 5x to 9x, was where image quality noticeably dipped. The S24 Ultra swaps in a single 50 MP periscope lens tuned for 5x, a sensor sharp enough to crop digitally and still match the old 10x shot.

The trade pays off most in low light and at the extremes: the S24 Ultra pulls in meaningfully more light at extended zoom and reacts faster when you tap to focus. The frame changes too, aluminum on the S23 Ultra, titanium on the S24 Ultra, though both Ultras keep the same S Pen and a near-identical 5000 mAh battery. The S24 Ultra edges ahead only slightly on real-world endurance, thanks to a more efficient chipset rather than a bigger cell.

Each refurbished Samsung Galaxy S23 and S24 sold on refurbed carries verified environmental savings compared to buying new. Based on scientific research by Fraunhofer Austria (ISO 14040/14044 verified):

CO₂e saved | Water saved | E-waste saved, per model:

↓ Samsung Galaxy S23 (128 GB): SAVED 40.9 kg CO₂e | 15,659.3 L water | 138 g e-waste

↓ Samsung Galaxy S24 (128 GB): SAVED 66.1 kg CO₂e | 24,692.9 L water | 137 g e-waste

↓ Samsung Galaxy S23 Ultra (256 GB): SAVED 55.7 kg CO₂e | 21,090.6 L water | 196.8 g e-waste

↓ Samsung Galaxy S24 Ultra (256 GB): SAVED 95.4 kg CO₂e | 35,314.8 L water | 194.8 g e-waste

Get the Galaxy S24 if you want the longest possible software runway, a flat modern design and steady Wi-Fi at the edge of your home network, and you don't game hard over mobile data.

Get the Galaxy S23 if you want the same core experience, from the identical camera hardware to nearly the same weight in hand, for meaningfully less upfront cost, especially refurbished.

Step up to the Galaxy S24 Ultra if the zoom range and low-light detail matter to your photography, or the Galaxy S23 Ultra if you want Ultra-tier specs at a lower entry point.

Skip the upgrade entirely if you already own an S23 or S23 Ultra and your day-to-day use is calls, messaging and casual photos. None of the differences above will change how that phone feels in your pocket.

Is the Galaxy S23 still worth buying in 2026?

Yes. It runs the same core camera hardware as the S24 and gets Samsung's rolled-out AI features, at a lower refurbished price.

What's the single biggest real-world difference?

Software support. The S24 gets 7 years of major OS updates against roughly 4 years for the S23, a gap that grows over time.

Is the Exynos Galaxy S24 worth avoiding?

Only if you game heavily over 5G. On Wi-Fi or for everyday use, the difference against the Snapdragon S23 is small.

Are the Ultra models worth the extra cost?

Only if zoom photography or the S Pen matter to your daily use. Otherwise the base S23 or S24 covers most people's needs.