Overmax Vertis Expi vs Lenovo A820
| 手机规格 | 触控手机 | 触控手机 | 触控手机 | 触控手机 |
| 大小 | 134.00 x 67.00 x 9.00 mm | 135.00 x 68.20 x 9.90 mm | 124.00 x 62.00 x 8.40 mm | 146.00 x 73.00 x 9.00 mm |
| Weight |  | 145.00 g | 105.00 g | |
| 显示屏尺寸 | 4.50" | 4.50" | 4.30" | 5.00" |
| Display | 彩色 / IPS TFT 540 x 960 px (4.50") 245 ppi | 彩色 / IPS TFT 16M 颜色 540 x 960 px (4.50") 245 ppi | 彩色 / IPS TFT 16M 颜色 540 x 960 px (4.30") 256 ppi | 彩色 / IPS TFT 540 x 960 px (5.00") 220 ppi |
| 显示保护 |   | | Asahi Dragontrail Buy screen protector | |
| 附加显示屏 | | | | |
| 辅助显示保护 | | | | |
| 通话最长时间 | | | 2G: 378 分钟 (6.3 h) | |
| 待机最长时间 | | | 3G: 180 钟头 (7.5 一天) | |
| 标准电池 | Li-Ion 2000 mAhBuy powerbank | Li-Ion 2000 mAhBuy powerbank | Li-Ion 1600 mAhBuy powerbank | Li-Ion 2600 mAhBuy powerbank |
| 快速充电 | | | | |
| 无线充电 | | | | |
| 手机存储 | 4 GB | 4 GB | 4 GB | 8 GB |
| 随机存取存储 (RAM) | 1 GB | 1 GB | 1 GB | 1 GB |
| Memory cards |  microSD, microSDHC 为 32 GBBuy memory card | microSD, microSDHC 为 32 GBBuy memory card | microSD, microSDHC 为 32 GBBuy memory card | microSD, microSDHC 为 32 GBBuy memory card |
| Operating system | Android 4.2 Jelly Bean | Android 4.1.2 Jelly Bean | Android 4.1 Jelly Bean | Android 4.2 Jelly Bean |
| 处理器 | Broadcom BCM23550 | MediaTek MT6589 | Qualcomm MSM8225Q | MediaTek MT6582M |
| Processor clock | 1200 MHz | 1200 MHz | 1200 MHz | 1200 MHz |
| GPU | - | PowerVR SGX544 MP1 @286 MHz | Adreno 203 | ARM Mali-400 MP2 @416 MHz |
| Touchscreen | | | | |
| SAR因素 | | 0,368 W/kg | | |
| 双SIM卡 | | | | |
| 混合双卡双待 | | | | |
| 手机其他名称 | - | - | Mist White; KM0406 | - |
| GSM frequencies | 900 1800 1900 | 900 1800 1900 | 850 900 1800 1900 | 900 1800 1900 |
| UMTS标准 | 900 2100 | 900 2100 | 900 2100 | 900 2100 |
| LTE 标准 | | | | |
| CDMA标准 | | | | |
| TD-SCDMA 标准 | | | | |
| UMA标准 | | | | |
相机 - 背面
| 第一台相机 | | | | |
| 矩阵 | 8 Mpx | 8 Mpx | 8 Mpx | 8 Mpx |
| Resolution | 3264x2448 px | 3264x2448 px | 3264x2448 px | 3264x2448 px |
| 光学变焦 | | | | |
| 闪光灯 | LED | | LED | LED |
| 双色LED闪光灯 | | | | |
| 视频分辨率 | 1280x720 px | | | 1280x720 px |
| 视频格式 | H.263, H.264, MPEG4 | H.263, H.264, MPEG4 | MPEG4, H.263, H.264 | H.263, H.264, MPEG4 |
| 额外 | - | - | AF | - |
相机 - 前面
| 第一台相机 | | | | |
| 矩阵 | 2 Mpx | nd | 2 Mpx | 2 Mpx |
| Resolution | 1600x1200 px | nd | 1600x1200 px | 1600x1200 px |
| 光学变焦 | | nd | | |
| 闪光灯 | | nd | | |
| 双色LED闪光灯 | | nd | | |
| 视频格式 | H.263, H.264, MPEG4 | nd | MPEG4, H.263, H.264 | H.263, H.264, MPEG4 |
| 额外 | - | nd | - | - |
传感器
| 加速度计 | | | | |
| 接近传感器 | | | | |
| 光传感器 | | | | |
| 磁力仪 | | | | |
| 陀螺仪 | | | | |
| 晴雨表 | | | | |
| 高度表 | | | | |
| 重力感应器 | | | | |
| 霍尔效应传感器 | | | | |
| 虹膜扫描仪 | | | | |
| 指纹采集仪 | | | | |
| 温度计 | | | | |
| 湿度计 | | | | |
数据传输
| xHTML | | | | |
| WAP | v2.0 | v2.0 | v2.0 | v2.0 |
| HSCSD | | | | |
| HSDPA | | 21.00 Mbit/s | 7.20 Mbit/s | |
| HSUPA | | 5.76 Mbit/s | 5.76 Mbit/s | |
| HSPA | | | | |
| HSPA+ | | | | |
| LTE DL | | | | |
| LTE UP | | | | |
| WIMAX+ | | | | |
| GPRS | | 种类 12 | | |
| EDGE | | | | |
| 蓝牙 | | | v3.0 | |
| A2DP規範 | | | | |
| HDMI | | | | |
| WiFi | v802.11 b/g/n | v802.11 b/g/n | v802.11 b/g/n | v802.11 b/g/n |
| 无线频率 | 2,4 GHz | 2,4 GHz | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | | | |
| WiFi Display | | | | |
| DLNA | | | | |
| Miracast | | | | |
| WiFi 热点 | | | | |
| IrDA | | | | |
| USB | | v2.0 | v2.0 | v2.0 |
| GPS | | | | |
| A-GPS | | | | |
| GLONASS | | | | |
| Beidou | | | | |
| NFC | | | | |
通讯与讯息
| 呼叫等待 | | | | |
| 视频会议 | | | | |
| 呼叫转移 | | | | |
| 一按通 | | | | |
| 即时通讯 | | | | |
| 短信 | | | 3000 | |
| 增强短信 | | | | |
| 多媒体短信 | | | | |
| Dictionary | | T9 | XT9 | |
| Swype | | | | |
| 电子邮件用户 | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| QWERTY键盘 | | | | |
| RSS阅读器 | | | | |
多媒体
| Radio | | | | |
| MP3 | | | | |
| 立体声扬声器 | | | | |
| Audio Jack | 3.5 mm | 3.5 mm | 3.5 mm | 3.5 mm |
| HD Voice | | | | |
| 音频格式 | AAC, AAC+, AMR, APE, FLAC, OGG, WAV, WMA | AAC, AAC+, AMR, WAV, WMA, eAAC+ | AAC, AAC+, MPEG4, OGG, WMA | AAC, AAC+, AMR, APE, FLAC, OGG, WAV, WMA |
| 复调音乐 | | 64 意见 | | |
| 视频钟 | | | | |
| 作曲软件 | | | | |
| 游戏 | | | | |
| Java | Dalvik | Dalvik | Dalvik | Dalvik |
| 视讯电话 | | | | |
| DVB-H电视 | | | | |
| 电视机输口 | | | | |
PIM和附加功能
| 时钟 | | | | |
| 计时器 | | | | |
| 闹钟 | | | | |
| 计算器 | | | | |
| 汇率 | | | | |
| 电子记事本 | | | | |
| 日历 | | | | |
| 飞行模式 | | | | |
| SyncML | | | | |
| 数据与传真机 | | | | |
| 屏幕保护程序 | | | | |
| 主题 | | | | |
| 可交换的外壳 | | | | |
| 语音拨号 | | | | |
| 扬声器 | | | | |
| 录音电话机 | | | | |
| 振动 | | | | |