How the price table works
|Samsung galaxy a11||Xiaomi redmi 9|
|Dimensions||161.4 x 76.3 x 8 mm||163.32 x 77.01 x 9.1 mm|
|Weight||177 g||198 g|
|Screen diagonal||6.4 inches||6.53 inches|
|Screen definition||1560 x 720 px||2340 x 1080 px|
|Resolution||268 dpi||394 dpi|
|Part of the screen on the surface||81.98%||83.56%|
|Mobile chip||Snapdragon 450||Mediatek Helio G80|
|Processor||8 x ARM Cortex A53 – 1.8 GHz||ARM Cortex-A55 + Cortex A-75 – 2 GHz|
|Number of cores||8||8|
|Integrated GPU (iGPU)||Adreno 506||Mali-G52|
|Random access memory (RAM)||2 GB||4GB|
|Internal memory||32 KB||64 KB|
|Battery capacity||4000 mAh||5020 mAh|
|Photo sensor||13 MP||13 MP|
|Front photo sensor||8 MP||8 MP|
|Video capture||Full HD||Full HD|
|Operating System (OS)||Android||Android|
|OS version tested||10.0||10|
|Wi-Fi type||802.11bgn||802.11a / b / g / n / ac|
|SIM card format||Nano||Nano|
|Exposure level (SAR)||0.99 W / Kg|
|4G frequency bands||B20 (800), B3 (1800), B7 (2600), B28 (700), B1 (2100)||B20 (800), B3 (1800), B7 (2600), B28 (700), B1 (2100)|
|Module Photo 1||13 Mpx, wide-angle, eq. 26 mm, f / 1.8||13 Mpx, wide-angle, f / 2.2|
|Module Photo 2||5 Mpx, ultra wide angle, eq. 13 mm, f / 2.2||8 Mpx, ultra wide angle, f / 2.2|
|Module Photo 3||,,||5 Mpx, macro, f / 2.4|
|Module Photo 4||,,||2 Mpx,, depth|
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ERGONOMICS & DESIGN: XIAOMI REDMI 9
The two competitors of the day had won the same score on this criterion during our tests. Xiaomi has however made more efforts than Samsung, especially in terms of the area occupied by the screen on the front. That of the Chinese mobile occupies 83.56% (for a 6.53 inch screen), while that of the Korean occupies 81.6% (for 6.4 inches).
From a purely aesthetic point of view, it must be recognized that the Redmi particularly stands out from the A11. More in tune with the times, it benefits from a fresh and less austere design than Samsung's entry level, at least on the rear. We can feel an effort on the part of the Chinese giant, in particular with the placement of all the sensors – even the fingerprint one – on a single vertical island. The rather rare purple-blue color also allows the smartphone to be recognizable.
The front is however more pleasant on the Samsung mobile. On its model, the Korean firm has chosen a punch and not a simple notch, which is the case on the Xiaomi. The appreciation on this choice remains personal.
For the rest it is very classic in both cases. The volume controls and the start button are placed on the right edge. Both smartphones have USB-C as well as a 3.5mm mini-jack port. The latter is on the upper tench of the Samsung and on the lower for the Xiaomi. We also note the possibility of housing two SIM cards and a microSD card, but we regret the lack of waterproofing.
The two audio outputs are really in the middle, even if we have to admit that the Redmi 9 is doing better. The power output of both is not amazing and greedy headphones will make short work of it. The distortion is very well contained on both smartphones, the dynamic range is wide and the stereo reproduction above average.
|Galaxy a11||Redmi 9||Average|
|Output level||70 mVrms||89 mVrms||116.3 mVrms|
|Distortion + Noise||0.008%||0.002%||0.081%|
|Dynamic Range||84.70 dB||97 dB||91 dB|
|Crosstalk||-61 dB||-65 dB||-54.7 dB|
Both offer a single speaker placed on the lower edge. The sound delivered is quite close to mediocre on the two mobiles. In short, it's a bit light.
SCREEN: XIAOMI REDMI 9
Both smartphones have an IPS LCD panel, the Oled not yet having really reached entry-level mobiles. And it is the Redmi 9 which offers the best display. It is already offering a Full HD + definition where the Samsung is confined to HD +. Colorimetric side, Xiaomi's mobile is doing well with a Delta E raised to 3.3 (against 3.9 for the A11). A value which remains however quite high.
In terms of color temperature, the Xiaomi Redmi was measured at 6,860 Kelvin, a value very close to the video standard (6,500 K). You will have to go through the settings to reach this value and choose "standard" then "hot" mode. On the Samsung Galaxy A11, we recorded 8,366 Kelvin, way too much above the video standard. A figure that is impossible to correct since the smartphone does not allow you to change its screen settings.
The maximum brightness of the Galaxy A11 is pretty good. We measured it at 419 cd / m², against 317 cd / m² for the Redmi 9. A fairly comfortable value, especially since the reflectance was measured at 47% (51.3% for the Xiaomi). The minimum brightness makes us disillusioned. The Galaxy A11 reaches 16.8 cd / m², a value much too high to consult the smartphone in the dark. The Redmi 9 manages to go down to 4.2 cd / m², which is much more comfortable.
Tactile delay and afterglow are average in both cases. We noted 74 ms and 16 ms respectively for the A11 and 85 ms and 18 ms for the Redmi 9.
PERFORMANCE: XIAOMI REDMI 9
The Samsung Galaxy A11 has a Qualcomm processor, the Snapdragon 450, which is coupled with 2 GB of RAM. For the Redmi 9, Xiaomi did not make the same choice and preferred to turn to MediaTek and its Helio G80 chip coupled with 3 GB of RAM.
With these entry-level smartphones, we suspect that the performance will not be incredible. But the Redmi manages to offer something quite acceptable, especially in terms of RAM management. It obtains an index of 89 where the A11 only reaches 48. In game, it is good to specify that neither of the two models is really comfortable with the majority of the titles present on the Play Store. In this case, the Redmi 9 gets a score of 39 and the Galaxy A11 drops to 18. Both indices are far too low – the best models are approaching 100.
Overall, the Redmi 9 obtains an index of 64 and the Galaxy A11 an index of 33; which means that the Samsung mobile is classified in the lower part of our table, while that of Xiaomi offers something more balanced for its price.
PHOTOS: SAMSUNG GALAXY A11
The photo setup is quite similar on both smartphones. Both are equipped with a 13 megapixel main module and have in addition an ultra wide-angle and macro module. The Redmi 9 also offers a depth sensor, pushing the number of modules present to 4.
|Galaxy a11||Redmi 9|
|Main sensor||13 megapixels, f / 1.8, eq. 26 mm||13 megapixels, f / 2.2, eq. 27 mm|
|Ultra wide angle||5 megapixels, f / 2.2, eq. 13 mm||8 megapixels, f / 2.2, eq. 15 mm|
|Macro||2 megapixels, f / 2.4||5 megapixels, f / 2.4|
The Galaxy A11 is more faithful in the daytime photo. The exposure is much better controlled and the software offers a more detailed shot than that of the Xiaomi Redmi 9. The photo of the latter draws red and the smoothing is very pronounced.
In low light, the two images are not really usable. However, the A11 shot is once again much better exposed than that of the Redmi 9. But in both cases, the digital noise covers the whole scene and loses detail.
Ultra wide-angle module
On the ultra wide-angle module, the finding is the same as on the main module. The Redmi 9 offers an overexposed shot, while that of the A11 is more controlled. The software processing smooths the images for both, but in the end, that of the A11 is more flattering.
On this point, the Redmi 9 is doing the best. The Galaxy A11 shot is unusable, so smooth it looks like it's been rubbed with butter. The Xiaomi photo is not the most usable, but the scene remains visible and the objects that compose it discernible. However, digital noise tarnishes the overall picture quality.
Front module, portrait and video mode
On the front, both smartphones offer an 8-megapixel module. They offer a rather average rendering, especially on the side of the A11 whose application tends to suffer from slowdowns. The portrait mode on the front is only available on Samsung mobile. It turns out to be unconvincing, failing to perfectly cut out the model.
For video, both are confined to Full HD 1080p maximum.
AUTONOMY: XIAOMI REDMI 9
On the battery side, the Redmi 9 has the biggest. The smartphone has an accumulator of 5,020 mAh, against 4,000 mAh for the Korean. A fairly significant difference which should logically crown Xiaomi's smartphone. However, it is the Galaxy A11 which is the most autonomous. It held 20 h 46 min on our SmartViser test protocol, where the Redmi 9 died after 19 h 41 min. A gap of an hour all the same.
However, it is not the Samsung which wins this round because of its charging time: 3 h 13 min, the fast charge at 15 W is not really fast. The 10 W charger offered by Xiaomi allows for its part to recharge 100% of the battery in the space of 2 h 04 min. A less powerful block, but still much more lively, and which allows the Redmi 9 to steal this point.
CONCLUSION: XIAOMI REDMI 9
With 4 out of 5 rounds, the victory of the Redmi 9 is overwhelming. Xiaomi's mobile offers a better screen, better performance and better autonomy / charging than its competitor of the day. The only point won by the Galaxy A11 is in the photo, an area not yet mastered by the Chinese manufacturer on the entry level.