IF you want to buy a feature phone with cheaper price, vkworld V3s is a good choice.
The upcoming vkworld Stone V3S is going to the world’s very quadruple-protection phone.
water-resistant,
dust-resistant,
shatter-resistant,
strong enough to work in cold weather conditions.

Another highlight of Stone V3S is the 2530 BOX Speaker, which is the upgrade version of the speaker on vkworld T3.
Size: 3.5cm*2.5cm;
HiFi;
Louder volume: 165dB;
Total harmonic distortion: 0.0011%;
Intermodulation distortion: 0.0028%;
Stereo separation: -139dB;
Noise level: -166dB;
Noise reduction technology;
Stereo effect;

Stone V3S is not only a qualified back-up phone but also a good tool in wild adventure or journey owing to the super compact and tough construction. And it also comes with dual LED lights which are much brighter than normal camera flash light.