diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 22f919d56..72dfe87bd 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -1120,10 +1120,6 @@ static void PacketReceived(PacketCommandNG *packet) {
             em4x50_reset();
             break;
         }
-        case CMD_LF_EM4X50_WATCH: {
-            em4x50_watch();
-            break;
-        }
         case CMD_LF_EM4X50_RESTORE: {
             em4x50_restore((em4x50_data_t *)packet->data.asBytes);
             break;
diff --git a/armsrc/em4x50.c b/armsrc/em4x50.c
index 0afb1751c..36a86ee4b 100644
--- a/armsrc/em4x50.c
+++ b/armsrc/em4x50.c
@@ -1155,42 +1155,6 @@ void em4x50_reader(void) {
     reply_ng(CMD_LF_EM4X50_READER, now, (uint8_t *)words, 4 * now);
 }
 
-void em4x50_watch() {
-
-    // read continuously and display standard reads of tag
-
-    int now = 0;
-    uint32_t words[EM4X50_NO_WORDS] = {0x0};
-    
-    em4x50_setup_read();
-
-    while (BUTTON_PRESS() == false) {
-
-        WDT_HIT();
-        memset(words, 0, sizeof(words));
-        now = 0;
-
-        if (get_signalproperties() && find_em4x50_tag()) {
-
-            if (standard_read(&now, words) == PM3_EOPABORTED)
-                break;
-            
-            if (now > 0) {
-
-                Dbprintf("");
-                for (int i = 0; i < now; i++)
-                    Dbprintf("EM4x50 tag data: "
-                             _GREEN_("%08x") " (msb) - " _GREEN_("%08x") " (lsb)",
-                             words[i], reflect32(words[i]));
-            }
-        }
-    }
-
-    LOW(GPIO_SSC_DOUT);
-    lf_finalize();
-    reply_ng(CMD_LF_EM4X50_WATCH, 1, 0, 0);
-}
-
 //==============================================================================
 // write functions
 //==============================================================================
diff --git a/armsrc/em4x50.h b/armsrc/em4x50.h
index c09c09d17..979d9bca7 100644
--- a/armsrc/em4x50.h
+++ b/armsrc/em4x50.h
@@ -26,7 +26,6 @@ void em4x50_read(em4x50_data_t *etd);
 void em4x50_brute(em4x50_data_t *etd);
 void em4x50_login(uint32_t *password);
 void em4x50_reset(void);
-void em4x50_watch(void);
 void em4x50_restore(em4x50_data_t *etd);
 void em4x50_sim(void);
 void em4x50_reader(void);
diff --git a/client/src/cmdlfem4x.c b/client/src/cmdlfem4x.c
index c6a97943c..06e8b8a03 100644
--- a/client/src/cmdlfem4x.c
+++ b/client/src/cmdlfem4x.c
@@ -661,7 +661,6 @@ static command_t CommandTable[] = {
     {"4x50_brute",  CmdEM4x50Brute,       IfPm3EM4x50,     "guess password of EM4x50"},
     {"4x50_login",  CmdEM4x50Login,       IfPm3EM4x50,     "login into EM4x50"},
     {"4x50_reset",  CmdEM4x50Reset,       IfPm3EM4x50,     "reset EM4x50"},
-    {"4x50_watch",  CmdEM4x50Watch,       IfPm3EM4x50,     "watch for EM4x50 tags"},
     {"4x50_restore",CmdEM4x50Restore,     IfPm3EM4x50,     "restore EM4x50 dump to tag"},
     {"4x50_sim",    CmdEM4x50Sim,         IfPm3EM4x50,     "simulate EM4x50 tag"},
     {"4x50_reader", CmdEM4x50Reader,      IfPm3EM4x50,     "show standard read mode data of EM4x50"},
diff --git a/client/src/cmdlfem4x50.c b/client/src/cmdlfem4x50.c
index 5830ae040..b4d787bbc 100644
--- a/client/src/cmdlfem4x50.c
+++ b/client/src/cmdlfem4x50.c
@@ -819,37 +819,6 @@ int CmdEM4x50Reader(const char *Cmd) {
     return PM3_SUCCESS;
 }
 
-int CmdEM4x50Watch(const char *Cmd) {
-
-    // continously envoke reading of a EM4x50 tag
-
-    PacketResponseNG resp;
-
-    CLIParserContext *ctx;
-    CLIParserInit(&ctx, "lf em 4x50_watch",
-                  "Watches for EM4x50 tags. Function runs until button is pressed.",
-                  "lf em 4x50_watch\n"
-                 );
-
-    void *argtable[] = {
-        arg_param_begin,
-        arg_param_end
-    };
-
-    CLIExecWithReturn(ctx, Cmd, argtable, true);
-    CLIParserFree(ctx);
-
-    PrintAndLogEx(SUCCESS, "Watching for EM4x50 cards - place tag on antenna");
-    PrintAndLogEx(INFO, "You can cancel this operation by pressing the pm3 button");
-    
-    clearCommandBuffer();
-    SendCommandNG(CMD_LF_EM4X50_WATCH, 0, 0);
-    WaitForResponseTimeoutW(CMD_LF_EM4X50_WATCH,  &resp, -1, false);
-
-    PrintAndLogEx(INFO, "Done");
-    return PM3_SUCCESS;
-}
-
 int CmdEM4x50Dump(const char *Cmd) {
 
     int fnLen = 0, pwdLen = 0, status = 0;
diff --git a/client/src/cmdlfem4x50.h b/client/src/cmdlfem4x50.h
index cd19e7297..fe45a16f6 100644
--- a/client/src/cmdlfem4x50.h
+++ b/client/src/cmdlfem4x50.h
@@ -26,7 +26,6 @@ int CmdEM4x50Wipe(const char *Cmd);
 int CmdEM4x50Brute(const char *Cmd);
 int CmdEM4x50Login(const char *Cmd);
 int CmdEM4x50Reset(const char *Cmd);
-int CmdEM4x50Watch(const char *Cmd);
 int CmdEM4x50Restore(const char *Cmd);
 int CmdEM4x50Sim(const char *Cmd);
 int CmdEM4x50Reader(const char *Cmd);
diff --git a/include/pm3_cmd.h b/include/pm3_cmd.h
index 56d7ec1b5..efdcafe33 100644
--- a/include/pm3_cmd.h
+++ b/include/pm3_cmd.h
@@ -510,7 +510,6 @@ typedef struct {
 #define CMD_LF_EM4X50_BRUTE                                               0x0245
 #define CMD_LF_EM4X50_LOGIN                                               0x0246
 #define CMD_LF_EM4X50_RESET                                               0x0247
-#define CMD_LF_EM4X50_WATCH                                               0x0248
 #define CMD_LF_EM4X50_RESTORE                                             0x0249
 #define CMD_LF_EM4X50_SIM                                                 0x0250
 #define CMD_LF_EM4X50_READER                                              0x0251