It seems you can always count on an upper midrange Samsung smartphone to come with a great-looking display. The Korean Giant is pretty much on top of the food chain when it comes to its excellent Super AMOLED technology where high contrast and punchy colors are a given.
Sitting proud at a respectable 5.7 inches, the Galaxy C7 is a perfect stand-in for a Note phablet, minus the S Pen of course, among other things. The point is, you definitely won't suffer from any shortage of screen real estate and the Full HD resolution and 386ppi still make for an absolutely sharp image. Plus, skipping on the increasingly popular QHD does go easier on your battery.
As far as performance goes, the panel on the Galaxy C7 does quite alright. It has deep blacks and the benefit of infinite contrast. At 100% brightness level, it maxes out at 422 nits, which is pretty close to what Samsung's current flagship devices, like the Galaxy S7 and Note7 are capable of. When presented with a bright external light source, the C7 can burn up to 624 nits in Max Auto mode, so using it outdoors is trouble-free, even on the brightest of days.
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As already mentioned, sunlight legibility does not disappoint. In fact, it is nothing short of excellent.
Color accuracy is impressive as well, but you do have to switch the display to Basic mode to enjoy the most accurate color reproduction. In Basic mode the average delta E is only 2.4 and a max reading of 5, interestingly enough, in the cyan color. But if you would much rather enjoy the punchy colors AMOLED has to offer, you can just leave the C7 in Adaptive mode, where reds tend to deviate as far off as 12.7.
Overall, the display is excellent save for the slight color shift when looking at it from an angle.
The Samsung Galaxy C7 is equipped with a total of two nano SIM slots. It's a hybrid slot so one of the card positions is to be used with either a SIM card or a Micro SD card, so you do have to choose. As for network speed, the Snapdragon 625 powering the phablet is equipped with an X9 LTE modem, capable of speeds of up to Cat.7 or 300 Mbps. However, Samsung has capped the C7 to Cat.4 or 150 Mbps. Other Internet connectivity options include Wi-Fi a/b/g/n/ac.
Local connectivity includes Bluetooth 4.2 complete with ANT+ support, so Samsung has made sure to keep the hardware up to date in this department. NFC is also on board, and it is compatible with Samsung Pay.
The microUSB 2.0 port handles charging and data, but it also supports USB OTG so you can hook up external hardware to the phone.
You do get FM radio as well, as a more old-school source of music and entertainment. It is full-featured as well and includes RDS and recording.
The Samsung Galaxy C7 is powered by a hefty 3300mAh battery, which is non-removable. However, on a positive note, combined with the 1080p AMOLED panel and a 14nm midrange Snapdragon processor, the sealed-in pack manages to go a long way. Just as a reference, you might recall the Galaxy J7 (2016), which managed to pull a whopping 101 hours of endurance with an identical 3300mAh battery, a 14nm Exynos chipset and a 720p AMOLED display.
The C7, which has most of the same ingredients, scored 100 hours flat in our dedicated battery life test. That is a truly outstanding performance and puts the C7 only a notch below the Galaxy J7 (2016) in our battery performance chart and in the top 15 of all time. And better yet, this incredible endurance is achieved while still maintaining an above average 2.0GHz of clock rate on the Cortex-A53 cores and an impressive overall performance. We have no doubt that similar battery life results will become more common as the 14nm development processes spread to more and more chip designs. However, right now, you should look no further than the Galaxy C7 for excellent battery life.
The battery testing procedure is described in detail in case you're interested in the nitty-gritties. You can also check out our complete battery test table, where you can see how all of the smartphones we've tested will compare to each other under your own choice of usage pattern.