Samsung Galaxy A42

Samsung Galaxy A42 review: specs, battery & used prices

Hands-on-style overview of the Samsung Galaxy A42 with Qualcomm Snapdragon 750G: screen, cameras, battery, performance and what it costs used.

Summary

The Galaxy A42 5G was Samsung's push to make 5G ordinary: a 6.6-inch OLED, Snapdragon 750G with a genuine 5G modem, and a 5,000 mAh battery at a $365 launch price. Our everyday score of 34/100 and battery score of 40/100 describe a practical mid-ranger whose main historical role was normalizing 5G for the mass market.

Display and design

The 6.6-inch OLED at 60 Hz and 500 nits follows the A-series formula — contrast above the LCD competition, brightness adequate, refresh basic. Screen score: 35/100. At 193 g with no IP rating, it is a large, conventional slab; the 84/100 compactness score notes it is manageable for its class.

Performance

The Snapdragon 750G was the 5G-for-the-people chip: everyday 34/100, gaming 5/100. Ordinary apps run with mid-range patience, and the modem outlived the phone's software window — which closed years ago, the honest cost of 2020 mid-range Android.

Camera

A 48 MP main, 8 MP ultrawide, 5 MP macro and 2 MP depth with 4K30 video: a 29/100 score. The main sensor's daylight output is the tier's standard honest work; the auxiliary sensors are decorative.

Battery and charging

The 5,000 mAh cell scores 40/100 — a full day plus for any use profile the chip can sustain, and the phone's second selling point after the modem. Charging at 15 W is the segment's standard slow.

Verdict

Used pricing sits at the floor of usable OLED phones: 4/128 units around $99 (two listings). The value logic is simple — under $100 for a 5G-capable OLED Samsung — against the closed software window as the standing caveat. The A31 is the similar OLED idea a step down in silicon; the A23 is the newer, supported iteration of the same formula.

Data sheet

Overall score

low tier (0–100 composite of performance, battery, value and longevity)

22
Gaming (SoC) 5.5
Camera 28.6
Battery life 40
Charging 0
Everyday 33.8
Screen 35
Compactness 84
Refresh rate 60Hz
OS support (years left) -4 yr
Screen 6.6" OLED
Chipset Qualcomm Snapdragon 750G
Memory (RAM / storage) 4 GB / 128 GB · 6 GB / 128 GB · 8 GB / 128 GB
Battery 5,000 mAh
Main camera 48 MP
Released 2020 · Android

Memory & used prices

RAM / storage New Used (eBay median) Listings
4 / 128 GB $365 $99 2 listings

Resale trend

Estimate from two anchors: launch MSRP $365 (2020) and used-market median $99 (2026). −20% / year · next year ≈ $80

2020
$365
2021
$294
2022
$236
2023
$190
2024
$153
2025
$123
2026 · now
$99
2027
$80

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